OBD code B1374 indicates a fault with the Illuminated Entry Relay circuit.
Symptoms include the Engine Light being ON.
This code is usually caused by a faulty Illuminated Entry Relay, open/shorted harness, or poor electrical connection.
It’s not a severe issue but should be addressed.
To fix it, inspect the wiring harness, connectors, and relay for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the b1374 OBD Code
The vehicle displays a fault code B1374 indicating an issue with the driver door lock switch circuit.
- With OBD code B1374, the Service Engine Soon Warning Light may illuminate.
- The radio may not work.
- The chime may not sound.
- The door locks may not function properly.
Causes of the b1374 OBD Code
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Possible triggers for fault code B1374 include issues with the seat belt tension sensor.
- B1374 can be caused by a faulty Illuminated Entry Relay.
- An open or shorted Illuminated Entry Relay harness.
- A poor electrical connection in the Illuminated Entry Relay circuit.
Fixing Error Code b1374 Step By Step
To address fault code B1374, inspect and repair the driver’s side airbag circuit as needed.
- To fix OBDII code B1374, first, review the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the code.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no issues are found with the wiring and connectors, consider resetting the module that is associated with the code.
- If the problem persists after resetting the module, it may be necessary to replace the module to resolve the B1374 fault code.
Cost Of Fixing b1374 Fault Code
The repair for fault code B1374 typically involves replacing the driver’s side airbag module.
The cost to diagnose and fix OBD code B1374 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour.
The total cost will vary based on shop rates, complexity of the issue, and any additional parts or services needed.
Details of the b1374 OBD Code
B1374 code indicates a malfunction in the driver’s side airbag circuit.
OBD code B1374 means Oil Change Indicator Circuit High Voltage.
This code is triggered by the Body Control Module (BCM) when it detects a high voltage signal from the oil change indicator circuit.
The oil change indicator system is involved in monitoring the engine oil life and reminding the driver when an oil change is due based on driving conditions.
Mechanic’s Tech Notes
Code B1374 indicates a malfunction in the driver’s side airbag circuit.
OBDII code B1374 indicates a malfunction in the TCM power circuit.
To diagnose, use a multimeter to check TCM power and ground connections for proper voltage and continuity.
Utilize a scan tool to confirm TCM communication over the CAN network.
Visually inspect wiring harnesses and connectors for any damage, and ensure connector pins are not broken, bent, or corroded.
If all checks out, consider reprogramming the TCM.
FAQ
OBD code B1374 indicates a faulty Illuminated Entry Relay. Symptoms include Engine Light ON. Fix: Inspect relay, harness, and connectors for damage or poor connection.
Common symptoms of OBD code B1374 include Engine Light ON. Causes may be a faulty Illuminated Entry Relay or related wiring issues. Fix: Inspect and repair wiring and connectors.
Diagnose OBD code B1374 by checking for a faulty Illuminated Entry Relay, open/shorted harness, or poor connection. Inspect wiring harness and connectors for damage or corrosion.
Wrap Up
If your vehicle is displaying OBD code b1374, you may experience issues with the driver door ajar switch circuit.
This could be caused by a faulty door ajar switch, damaged wiring, or poor connections in the circuit.
To address OBD code b1374, start by inspecting the driver door ajar switch and its wiring harness for any signs of damage or corrosion.
Test the switch for proper operation and ensure all connectors are securely attached.
Replace the switch if necessary and repair any damaged wiring to resolve the issue.
