V2202 – Mis-Wired Engine Oil Pressure Sensor – 2022 Isuzu NQR Gas & NRR Gas

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June 17, 2022 NHTSA CAMPAIGN NUMBER: 22V434000

Oil Pressure Sensor Incorrectly Wired

An incorrectly wired oil pressure sensor will not alert the driver to low oil pressure, possibly resulting in an engine stall and increasing the risk of a crash.

 

NHTSA Campaign Number: 22V434

Manufacturer IsuzueBay Technical Center of America, Inc.

Components ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING

Potential Number of Units Affected 974

 

Summary

IsuzueBay Technical Center of America, Inc. (IsuzueBay) is recalling certain 2022 NQR Gas and NRR Gas trucks equipped with 6.0L engines. The engine wiring harness assembly was incorrectly wired to the oil pressure sensor.

 

Remedy

Dealers will fix the engine wiring harness assembly connector in the engine oil pressure sensor, free of charge.. Owner notification letters were mailed on July 29, 2022. Owners may contact IsuzueBay’s customer service at 1-866-441-9638. IsuzueBay’s number for this recall is V2202.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check if your Isuzu Truck has a Recall

 


IMPORTANT SAFETY RECALL
MIS-WIRED ENGINE OIL PRESSURE SENSOR (V2202) – 22V-TBD
Transport Canada 2022-TBD

AFFECTED VEHICLES  

  • 2022MY IsuzueBay N-Series Vehicles (Equipped with 6.0L Gasoline Engines) Built Before November 3, 2021

 

INFORMATION

CONDITION

IsuzueBay Motors Limited has decided that a defect exists in certain 2022 model year IsuzueBay NQR and NRR trucks (equipped with 6.0L gasoline engines) built before November 3, 2021. In the affected vehicles, the engine wiring harness assembly was incorrectly wired at the pinout connector for the oil pressure sensor.  The ECM (and a technician’s scan tool) will not detect the condition for low oil pressure and will always perceive the pressure to be at 126 PSI.  If the oil pressure drops below a certain level, the engine oil pressure telltale will not illuminate to indicate low pressure.  If the engine oil pressure is low, the defect will mask the warning to the driver or consumer, who may continue to operate the vehicles with a low engine oil pressure.  If the engine continues to operate at a low engine oil pressure, it could damage the engine or its components and could cause the engine to seize and stall without prior warning.  A seized engine can result in vehicle stalling and increase the risk of a crash.

 

NEW VEHICLE CORRECTION (DEALER INVENTORY ONLY)

You (IsuzueBay dealers) will correct the engine wiring harness assembly connector in the engine oil pressure sensor in the new vehicles in your inventory.  Open a repair order referencing the Stop Sale (dated 6/17/2022) and perform the remedy procedure set forth in this bulletin.

IMPORTANT: This correction is for affected new vehicles in dealer inventory only.  This bulletin will be updated when a remedy has been determined for affected customer vehicles.

 

VEHICLES INVOLVED

Involved are certain 2022 model year N-Series vehicles (equipped with 6.0L engines) built before November 3, 2021.

Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using IVIS (IsuzueBay Vehicle Information System).

For dealers with involved vehicles, a report of involved vehicles containing the complete vehicle identification numbers has been or will be provided. Dealers will not have a report available if they have no involved vehicles currently assigned.

 

SERVICE PROCEDURE

NEW VEHICLE CORRECTION (DEALER INVENTORY ONLY)

1. Apply the parking brake and block the rear wheels.

2. For non-crew cab models, safely tilt the cab and insert the safety pin per the instructions in the applicable Workshop Manual (WSM). If the vehicle is a crew cab model, remove the in-cab rear engine cover. (See Figure 1.)

 

3. Locate the oil pressure sensor on the upper rear of the engine just behind the intake plenum. (See Figure 2.)

 

4. Remove the connector E-104 from the oil pressure sensor by squeezing the lock tab and pulling upwards.

5. Remove the tape from the plastic conduit around the wires to the E-104 connector about 30mm up from the connector. Remove the wires from the conduit.

6. Remove the tape from the wires about 25mm up from the E-104 connector. (See Figure 3.)

 

7. Use a small screwdriver to remove the Primary Lock Reinforcement (PLR) from the inner portion of the E-104 connector as shown in Figures 4 and 5. Set aside the PLR for reuse later.

 

8. Use a small screwdriver to remove the Terminal Position Assurance (TPA) piece from the topside of the E-104 connector as shown in Figures 6 and 7. Make sure to unlock both tabs of the TPA before removing it. Set aside the TPA for reuse later.

 

9. Locate the wires going into Terminals 2 and 3 of the connector. (See Figure 8.)

NOTE: Do not remove Terminal 1. It does not require any modification.

 

10. Using terminal tool 10757862 or equivalent, deflect the locking arm for each wire in Terminals 2 and 3 as shown in Figure 9. As each locking arm is deflected, gently pull on the wire to remove each metal wire terminal end from the connector body. (See Figures 10 and 11).

NOTE: A small pick can be used to deflect the locking arm if a terminal tool is not available.

NOTE: Make note of the orientation of the metal terminals as they are removed for ease of reassembly.

 

11. Swap the wires of Terminals 2 and 3. Insert each wire into the proper hole with the metal terminal orientated the same way as it came out in Step 10. (See Figure 12.) Ensure that each metal terminal fully engages under each lock arm and that the rubber seal is completely seated into the connector.

12. Inspect the rear of the connector to ensure that the wires of Terminals 2 and 3 are now in the correct locations as shown in Figure 12.

 

13. Reinstall the TPA removed in Step 8 onto the rear of the connector. Ensure that each tab of the TPA “snaps” into place.

14. Reinstall the PLR removed in Step 7. Ensure that the PLR “snaps” completely in place.

15. Apply vinyl electrical tape back onto the wires from which the tape was removed in Step 6. (See Figure 13.)

 

16. Insert the wires back into the plastic conduit through the split in the conduit. Apply vinyl electrical tape around the conduit that was removed in Step 5. (See Figure 14.)

 

17. Connect the connector to the oil pressure sensor.

 

18. Using IDSS and with the engine running, check the engine oil pressure and confirm that oil pressure fluctuates with the engine RPM. (See Figure 15.)

a. If the oil pressure fluctuates, proceed to Step 19.

b. If the oil pressure remains at 126 PSI, confirm the wires are in the correct location as shown in Figure 11, the terminals are completely seated into the connector, and that the connector is completely seated onto the engine oil pressure sensor. If these checks do not find and correct the problem, contact TAL for assistance.

19. For non-crew cab models, remove the safety pin, lower the cab and properly lock it in place per the instructions in the applicable WSM. If the vehicle is a crew cab model, reinstall the in-cab rear engine cover that was removed in Step 2 and tighten the fasteners to Tightening Torque: 6.5 Nm (4.8 lb ft).

20. Proceed to Applying the Campaign Label.

 

APPLYING THE CAMPAIGN LABEL

21. Using a ball-point pen, fill in a campaign label (Part No. 2-90028-700-0) with Campaign Number V2202, IsuzueBay dealer code, and repair date.

22. Affix the campaign label onto the driver’s side B-pillar.

 


Effective immediately, stop the sale and delivery of affected new vehicles in your inventory, even if a customer has purchased an affected vehicle. Federal law prohibits the sale and delivery to customers of any vehicle containing a safety defect. You must not deliver any vehicle with the safety defect to customers until after the vehicle has been remedied.

 

WHAT IS THE CONDITION?

IsuzueBay Motors Limited has decided that a defect exists in certain 2022 model year IsuzueBay NQR and NRR trucks (equipped with 6.0L gasoline engines) built before November 3, 2021. In the affected vehicles, the engine wiring harness assembly was incorrectly wired at the pinout connector for the oil pressure sensor.  The ECM (and a technician’s scan tool) will not detect the condition for low oil pressure and will always perceive the pressure to be at 126 PSI.  If the oil pressure drops below a certain level, the engine oil pressure telltale will not illuminate to indicate low pressure.  If the engine oil pressure is low, the defect will mask the warning to the driver or consumer, who may continue to operate the vehicles with a low engine oil pressure.  If the engine continues to operate at a low engine oil pressure, it could damage the engine or its components and could cause the engine to seize and stall without prior warning.  A seized engine can result in vehicle stalling and increase the risk of a crash.

 

WHAT WE WILL DO – DEALER INVENTORY ONLY

IsuzueBay has issued this notification and campaign bulletin CB22-N-001 so that dealers may begin correcting the affected new vehicles in their inventory.

IMPORTANT: This correction is for affected new vehicles in dealer inventory only.  Bulletin CB22-N001 will be updated when a remedy has been determined for affected customer vehicles.

 

WHAT YOU SHOULD DO

You (IsuzueBay dealers) will correct the engine wiring harness assembly connector in the engine oil pressure sensor in the new vehicles in your inventory.  Open a repair order referencing this Stop Sale and perform the remedy procedure set forth in Campaign Bulletin CB22-N-001.

 


DET-22-065
ISUZUeBay CAMPAIGN: V2202

Chronology of Defect / Noncompliance Determination

573.6 (c) (6) or (7)

Describe the chronology of events leading up to the defect decision or test data for the noncompliance decision:

On July 7, 2021, IsuzueBay received the first field case reporting zero oil pressure in the engine when the IsuzueBay diagnostic scan tool displayed 126 psi.

 

IsuzueBay North America Corporation (INAC) QA, together with IsuzueBay Motors Limited (IML) and IsuzueBay Technical Center of America, Inc. (ITCA) (collectively, IsuzueBay), promptly launched an investigation in August 2021.

 

In September 2021, IsuzueBay determined that an erroneous engineering drawing caused the supplier of the harness containing the engine oil pressure (EOP) sensor connector to reverse Pins 2 and 3 of that connector when assembling that harness.  IsuzueBay’s supplier reworked existing stock of harnesses by switching connector pins 2 and 3.

 

In October 2021, IsuzueBay approved a revised harness engineering drawing to correct the error.

 

In November 2021, IsuzueBay implemented utilization of the reworked harnesses on the production line of new trucks.

 

On January 11, 2022, IsuzueBay implemented utilization of correctly assembled harnesses supplied from the harness manufacturer.  These harnesses had the correct harness-to-sensor connection on the E-104 connector.

 

From August 2021 through February 2022, IsuzueBay kept a close eye on the field experience of the vehicles that were produced with the improperly positioned EOP sensor Pins. Data was collected and then assembled on February 24, 2022 and discussed on March 15, 2022. As of February 24, 2022, there were 33 unique reports (that is, warranty claims and field reports that did not involve the same vehicle and the same repair) involving oil pressure concerns. Of the 33 unique reports, 16 involved customer complaints of “Check Engine Light (CEL) on” and engine noise, another 6 were complaints of “no start,” 4 indicated the engine ran rough, loss of oil pressure or no power, 4 claimed the engine had seized and 3 were complaints of an engine stall. At that time (and still today), IsuzueBay was (and remains) unaware of any crashes, property damage, injuries or deaths alleged to have resulted from this oil pressure sensor concern. IsuzueBay decided to continue its investigation into this issue and specifically on the question of whether this concern represented an unreasonable risk to motor vehicle safety.

 

From that point through the end of May, IsuzueBay continued to evaluate the field experience of the vehicles and the question of whether a field action was appropriate and necessary. On May 31, IsuzueBay put together the field data gathered to that point and then discussed the question – again including whether defect – the failure of the affected vehicles’ oil pressure sensor to sense the vehicles’ actual oil pressure and thus the failure of the EOP warning light to illuminate irrespective of the actual oil pressure in the vehicles – constituted an unreasonable risk to motor vehicle safety. As of May 31, 2022, there were 58 unique reports (that is, warranty claims and field reports that did not involve the same vehicle and the same repair) involving oil pressure concerns). Of the 58 unique reports (including 44 warranty claims and 53 TALs (field reports)), 32 (more than half) involved customer complaints of “Check Engine Light (CEL) on” and engine noise, 13 were complaints of “no start,” 3 involved miscellaneous claims such as the engine ran rough, loss of oil pressure or no power, 5 claimed the engine had seized and 5 were complaints of an engine stall. Based on this review, a decision was made on June 10, 2022 to conduct a safety-related defect recall. It connection with this review in early June,  IsuzueBay determined that the failure of the EOP warning light to illuminate irrespective of the actual oil pressure level in the affected vehicles may also be a noncompliance with FMVSS 101.

 

As stated above, IsuzueBay is not aware of any crashes, property damage, injuries or deaths associated with this issue.

 


1 Affected Product

Vehicle

MAKEMODELYEAR
ISUZUeBayN-SERIES2022

 


13 Associated Documents

Recall Acknowledgement

RCAK-22V434-4227.pdf 646.415KB

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Manufacturer Notices(to Dealers,etc)

RCMN-22V434-5701.pdf 135.424KB

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Defect Notice 573 Report

RCLRPT-22V434-8354.PDF 215.923KB

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Miscellaneous Document- Chronology

RMISC-22V434-7665.pdf 110.067KB

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Remedy Instructions and TSB

RCRIT-22V434-0592.pdf 1215.48KB

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Recall 573 Report- 07/20/2022

RCLRPT-22V434-2383.PDF 215.973KB

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Manufacturer Notices(to Dealers,etc)

RCMN-22V434-7857.pdf 402.24KB

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Recall 573 Report-08/02/2022

RCLRPT-22V434-1234.PDF 216.195KB

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Recall 573 Report- 08/15/2022

RCLRPT-22V434-4485.PDF 216.193KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22V434-5202.pdf 477.05KB

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Recall Quarterly Report #1, 2022-3

RCLQRT-22V434-9289.PDF 211.133KB

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Recall Quarterly Report #2, 2022-4

RCLQRT-22V434-1189.PDF 211.231KB

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Recall Quarterly Report #3, 2023-1

RCLQRT-22V434-7950.PDF 211.313KB

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  • Easy to Use, Simple Interface—Get Started in Minutes: Designed for simplicity and portability, the HD110 diesel scanner is incredibly easy to use. Just plug it in, scan, and go. This truck scanner is compact and lightweight, perfect for owner-operators, small fleets, and technicians. Whether you’re using it as an OBD2 scanner for diesel trucks or a general diesel scan tool, its user-friendly interface ensures a smooth, hassle-free experience. No complicated setups—just quick diagnostics when you need them most
Bestseller No. 7
ANCEL X7HD 10'' Heavy Duty Truck Scanner, Semi Trucks Full System Diagnostic Tool, Bidirectional Diesel Scan Tool with DPF, ECU Coding, 40+ Reset for Cummins, Detroit, Caterpillar, Volvo, Paccar etc
  • 🔥🔥🔥2025 New Functions Making X7 HD the Top Dog - Big Surprise!!! ANCEL X7 HD truck scanner 10 major functional advantages .✅>Full HDOBD/OBD2 Function ✅>ALL System Diagnostic ✅>42+ Reset Function ✅>Active Test / Bi-Directional Control✅>ECU Coding✅>Graphing Live Data✅>Wide Compatibility ✅>2 Yrs Free Update✅>Remote Operation✅>Bluetooth 5.0 & Wifi In addition, 8 major hardware advantages: ✅>6000 mAh✅>10.1 inch Tablet✅>2G RAM✅>32G ROM (Expandable to 128GB)✅>Data Record & Replay & Print✅>Android 10.0✅>Bluetooth 5.0 & Wifi✅>14 Languages
  • 🚛OEM DPF Forced Regen & Cylinder Cutout Test & more - ANCEL X7 HD diesel scanner diagnostic tool not only supports DPF regeneration, DPF reset, DPF related information reset, DPR state reset, DPD forced regeneration etc, which helps you better solve the exhaust aftertreatment system problems, but also supports activate motor to do exhaust air in ABS Automatically. Moreover, it features TPMS activation, cylinder cut-off and learning functions.
  • 🚛Advanced ECU Coding & Programming - ANCEL X7 HD 10.1inch truck scanner diagnostic tool is equipped with advanced ECU coding, supports Level calibration, Idle speed learning and Adjustment, Camshaft timing control learning, Control unit adaptations, Injector Codes, Read/Write VIN, Road speed limit optional vehicle speed set, etc... PLEASE NOTE that ECU codes are not compatible with all vehicles, please send us your VIN# to check vehicle compatibility.
  • 🚛42+ Reset Functions & Bidirectional Control - 2025 newest top heavy duty truck scan tool, comes with 42+ special services (ECU, Speed Limit and Idle Reset, Oil Reset, Injector Coding, EPB, ABS, SRS, Suspension, Throttle, etc. and always keep growing), which meet all your various needs for service and maintenance. Please send your VIN# to our 💌 amazon@anceltech.com 💌 to check compatibility.
  • 🚛10 Inch All Systems Diesel Scanner & Full HDOBD/OBD2 Modes - ANCEL X7 HD diesel truck scan tool supports all systems scan, such as Engine, Brake, Retarder, TECU Transmission, Tachograph, ABS, SRS, TPMS, EPB, SAS, ESP, and other vehicle systems, comes with 10 obd2 service modes: read/erase error codes, Data Stream, I/M Readiness, Vehicle Information, Actuations, DTC Lookup, EVAP, view freeze frame, etc.
Bestseller No. 8
ANCEL HD3400 Pro Full System Heavy Duty Truck Scanner - DPF Regen, Free Lifetime Updates - 98% Compatibility - Diesel Diagnostic Scan Tool for Cummins, Detroit, Caterpillar, Paccar & More
  • Extend DPF Life and Avoid Costly Repairs: Enhance your truck's performance with focused DPF care; featuring DPF regeneration, reset, and DPR state control for engines like Cummins, Detroit, Caterpillar, and more; save $10,000 to $30,000 in potential repairs; improve fuel efficiency and extend engine life; maintain reliable operation and reduce maintenance costs over time
  • Designed for Cummins Engine Vehicles: Fits almost all Cummins engines (ISB, ISC, ISD, ISG, ISK, ISL, ISX, ISM, ISN, QSB, X12, X15, B6.7, L9, L9N, QSM11, and more) commonly found in trucks like Freightliner, Kenworth, International, Peterbilt, Mack, Volvo, Western Star, Autocar, Terex, and school buses like Thomas/Blue Bird, It's also compatible with Komatsu/Sany machinery, Agrifac vehicles, RVs, and more. Note: For RVs with non-Cummins engines, please confirm engine type to verify compatibility
  • Maximize Caterpillar Engine Performance: Diesel scanner designed for Caterpillar engines (C7, C9, C11, C13, C15, C32, and more) in trucks like Caterpillar, Freightliner, Peterbilt, and Kenworth. Features include code reading/clearing, live data streaming, ECU retrieval, DPF regeneration, and more; unlock your engine's full potential with enhanced diagnostics and maintenance
  • Designed for Detroit Engine Trucks: This heavy duty truck scan tool is compatible with a wide range of heavy duty commercial trucks – class 7 and class 8, medium duty trucks, light duty trucks and semi-trucks equipped with Detroit engines, including DD13, DD15, DD16, Series 50, Series 60, MBE 900, MBE 4000, OM501, OM502, DDDL 6, and DDDL 7
  • Designed for Paccar Engine Trucks: This heavy-duty truck scanner diagnostic tool is specifically designed for Paccar engines, including Paccar PX-7, PX-9, MX-11, MX-13
Bestseller No. 9
NEXAS NL102 Plus Full Systems Heavy Duty Truck Scan Tool Force DPF Regen Tool HDOBD/EOBD Diagnostic Scanner with Oil Reset Sensor Calibration Truck & Car 2 in 1 Code Reader (Elite Version)
  • Please Note: For official version, please recognize the store name: Maxcicoo. 1. The HD OBD option is available for heavy truck owners and the OBD/EOBD option is available for other vehicle. 2. Owners need to fix the problem with the truck first before they need clear the error code. You can contact us at any time if you have any questions, we will solve the problem for you in time
  • Support Full Systems for Heavy Duty Truck: NL102 Plus car code reader supports read and clear DTC, live data, ECU information for truck all systems. Including Engine, Transmission, Drivetrain, Suspension, ABS, ESP, Cluster, E-xhaust, P-articular, Suspension, Braking System, Cab Climate, Body Control, Instrument Panel, Fuel System and more, which are in compliance with J1939, J1708 and J1587 protocols, it includes almost American HD trucks(Class4-Class8), it is recommended that customers confirm before purchase that if they comply with the years and agreements supported by NL102P obd2 reader before purchasing
  • Professional DPF Regeneration Tool: Force DPF Regen work on Cummins, Detroit, Maxxforce, ISUZU, HINO engine, it covers almost all US trucks, supported advanced features: DPF Regeneration, D-O-C Cleaning Procedures, DPF Regeneration in Parking, DPF Regeneration in Driving, DPF Onboard. NL102P scan tool helps you re-awaken the engine power when the diesel p-articulates of the engine accumulate. It will save $800-$2500 for truck owners a year
  • Excellent Oil Light Reset: NL102 Plus diagnostic tool support Oil service reset work on Cummins, Detroit, Maxxforce engine. when the replacement of engine oil is done, the truck system calculates when to change the engine oil and filter based on vehicle use. An oil change is required whenever indicated by the display, otherwise it will affect the engine maintenance and life. The NL102P truck scanner offers help to reset the Oil Life Reminder (Determine the Oil Service Light), ensure your driving safety
  • All OBD/EOBD Diagnosis: NL102 Plus supports both all 12V and all 24V truck, and it comes with 6 pin, 9 pin and 16 pin adapters for different interfaces. NL102 Plus can read and clear the trouble codes, determine the MIL (check your Truck engine) and I/M Readiness, Freeze Frame, Live Data, O-xygen Sensor Test, On-Board Monitor, Vehicle Identification Info. Built in a DTC lookup library you can find the related code definition to help you determine if your car needs repair. In order to ensure that you can use the NL102P, please check the manual before purchasing
SaleBestseller No. 10
FCAR F802 Heavy Duty Truck Scanner – DPF Regen, Full System Diesel Diagnostic Scan Tool for Cummins, Detroit, Caterpillar Paccar and More | 99% Commercial & Diesel Trucks/Cars | Lifetime Free Updates
  • Professional DPF REGEN: Designed for Cummins, CAT, Detroit, Paccar, International, Hino and more engines. Clears DPF soot to ensure optimal exhaust flow, reduce emissions and prevent engine issues. Regular regeneration enhances fuel efficiency, extends DPF lifespan, avoids costly repairs and ensures compliance with emissions standards. Note: Confirm vehicle compatibility before purchase
  • Comprehensive Heavy-Duty Diagnostic Solution: This versatile truck scanner supports a wide range of vehicles, including heavy-duty trucks, buses, trailers, and construction equipment, and is compatible with major protocols like J1587, J1939, J1708, and J27145. It works seamlessly with brands such as Autocar, Terex, and Komatsu, offering reliable diagnostics and performance optimization. Ensure your vehicle supports the listed protocols before purchase for guaranteed compatibility
  • Lifetime Free Updates & Unmatched Value: Unlike other truck scanner charging hundreds annually for updates, F802 provides lifelong free updates, ensuring compatibility with the latest vehicle models and saving you significant costs. With expert support, efficient diagnostics, and long-term savings, it’s the good choice for hassle-free, cost-effective vehicle maintenance
  • OIL RESET FOR ISUZU AND FUSO:F802 allows you to reset oil maintenance lights in minutes without professional help. It’s compatible with isuzu and fuso, user-friendly, and helps extend engine life by ensuring timely maintenance
  • Full HDOBD/EOBD/OBD2: With quick and accurate diagnostics, our device allowing them to read and clear trouble codes, monitor live data, and checking MIL (for truck engines) and I/M readiness. It helps optimize vehicle performance, improve fuel efficiency, prevent costly repairs, and maintain adherence to regulations, saving time and money in the long run

 


Last update on 2025-05-10 / Affiliate links / Images from Amazon Product Advertising API


 

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