Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Body Control Module (BCM) DTC Table
| DTC | Description | Action |
|---|---|---|
| B1008:23 | Wiper Mode Switch: Signal Stuck Low | INSTALL a new wiper/washer switch. REFER to: STEERING COLUMN MULTIFUNCTION SWITCH RH . CLEAR the DTCs and WAIT 10 seconds. REPEAT the self-test. If the DTC is retrieved again, INSTALL a new SASM . REFER to: STEERING ANGLE SENSOR MODULE (SASM) . |
| B1051:92 | Front Washer Switch: Performance or Incorrect Operation | INSTALL a new wiper/washer switch. REFER to: STEERING COLUMN MULTIFUNCTION SWITCH RH . CLEAR the DTCs and WAIT 10 seconds. REPEAT the self-test. If the DTC is retrieved again, INSTALL a new SASM . REFER to: STEERING ANGLE SENSOR MODULE (SASM) . |
| B1052:92 | Rear Washer Switch: Performance or Incorrect Operation | INSTALL a new wiper/washer switch. REFER to: STEERING COLUMN MULTIFUNCTION SWITCH RH . CLEAR the DTCs and WAIT 10 seconds. REPEAT the self-test. If the DTC is retrieved again, INSTALL a new SASM . REFER to: STEERING ANGLE SENSOR MODULE (SASM) . |
| B1087:86 | LIN Bus "A": Signal Invalid |
|
| B1087:88 | LIN Bus "A": Bus off |
|
| B10AD:04 | Rain Sensor: System Internal Failure | INSTALL new rain sensor. REFER to: RAIN SENSOR - VEHICLES WITHOUT: ACTIVE CITY STOP . |
| B10AD:06 | Rain Sensor: Algorithm Based Failure | INSTALL new rain sensor. REFER to: RAIN SENSOR - VEHICLES WITHOUT: ACTIVE CITY STOP . |
| B10AD:83 | Rain Sensor: Value of Signal Protection Calculation Incorrect | GO to PINPOINT TEST E |
| B112B:87 | Steering Wheel Module: Missing Message | GO to PINPOINT TEST B |
| B1131:55 | Wiper Motor Module: Not Configured | DIAGNOSE all other DTCs first. If no other DTCs are present, INITIALIZE the windshield wiper motors. REFER to: WINDSHIELD WIPER MOTOR INITIALIZATION . |
| B1131:83 | Wiper Motor Module: Value of Signal Protection Calculation Incorrect | DIAGNOSE all other Diagnostic Trouble Codes (DTCs) first. CLEAR the Diagnostic Trouble Codes (DTCs). WAIT 10 seconds and REPEAT the BCM self-test. If DTC B1131:83 returns, INSTALL a new driver side windshield wiper motor. |
| B1131:87 | Wiper Motor Module: Missing Message | GO to PINPOINT TEST A |
| B129A:86 | LIN Bus "D": Signal Invalid | GO to PINPOINT TEST A |
| B129A:88 | LIN Bus "D". Bus off | GO to PINPOINT TEST A |
| B1C77:11 | Rear Wiper Relay: Circuit Short To Ground | GO to PINPOINT TEST I |
| B1C77:12 | Rear Wiper Relay: Circuit Short To Battery | GO to PINPOINT TEST H |
| B1C77:13 | Rear Wiper Relay: Circuit Open | GO to PINPOINT TEST H |
| B1C77:14 | Rear Wiper Relay: Circuit Short To Ground or Open |
|
| B1C77:19 | Rear Wiper Relay: Circuit Current Above Threshold | GO to PINPOINT TEST H |
| B1D38:16 | Front Wiper Motor: Circuit Voltage Below Threshold | GO to PINPOINT TEST A |
| B1D38:17 | Front Wiper Motor: Circuit Voltage Above Threshold | GO to PINPOINT TEST A |
| B1D38:19 | Front Wiper Motor: Circuit Current Above Threshold | GO to PINPOINT TEST A |
| B1D38:96 | Front Wiper Motor: Component Internal Failure |
|
| U0231:00 | Lost Communication With Rain Sensing Module: No Sub Type Information | GO to PINPOINT TEST E |
| All other Diagnostic Trouble Codes (DTCs) | - | REFER to: BODY CONTROL MODULE (BCM) . |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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