U0151:87

PINPOINT TEST 20: DTCs U0151:87 AND 88

Normal Operation

The stability/traction control system sensors consist of the yaw rate sensor, roll rate sensor, lateral accelerometer and longitudinal accelerometer. The stability/traction control system sensors are contained within the restraints control module (RCM). The RCM provides the ABS module with the sensor information along a dedicated controller area network (CAN) bus.The stability/traction control system sensors are not serviceable separately from the RCM. If a new sensor/accelerometer is needed, a new RCM must be installed.

- DTC U0151:87 (Lost Communication With Restraints Control Module: Missing Message) - this DTC can set as a result of a loss of communication with the RCM over either the high speed controller area network (HS-CAN) bus or the CAN2 bus.
- DTC U0151:88 (Lost Communication With Restraints Control Module: Bus Off) - this DTC can set if either of the CAN2 circuit (L/W) or (G/O) are open, shorted to ground, or shorted to each other. Other DTCs indicating missing messages or invalid signal from the electronic stability control (ESC) sensors can set as a result of a CAN2 bus fault.

Possible Causes
- Wiring, terminals or connectors
- RCM

Diagnostic Procedure

CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Step 1-Step 4:

Step 5-Step 6: