Pinpoint Test B : B124D:02

B1 CHECK THE SENSOR IDENTIFIERS AND SYSTEM STATUS PIDs

Ignition ON.

Using a diagnostic scan tool, view and record the following BCM PIDs :
- Left Front Tire Transmitter Identifier (TPM_S_ID_LF)
- Right Front Tire Transmitter Identifier (TPM_S_ID_RF)
- Left Rear Tire Transmitter Identifier (TPM_S_ID_LRO)
- Right Rear Tire Transmitter Identifier (TPM_S_ID_RRO)

Monitor the TPMS PID TPMS_STATUS.

Does the TPMS_STATUS PID display SENSOR FAULT?

Yes	GO to B2.
No	If the TPMS_STATUS PID displays SYSTEM FAULT, GO to Pinpoint Test A

B2 CARRY OUT THE SENSOR TRAINING PROCEDURE

Train all 4 TPMS sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training - Intelligent Access (IA) or refer to Tire Pressure Monitoring System (TPMS) Sensor Training - Integrated Keyhead Transmitter (IKT) .

Did all of the tire pressure sensors transmit correctly and did the horn sound when each TPMS sensor is trained?

Yes

Using the diagnostic scan tool, LOCATE the updated TPMS sensor identifiers trained to the BCM. COMPARE these values to those recorded prior to the TPMS sensor training procedure. Disregarding sensor position, any sensor identifiers that do not match those retrieved from the module were changed, but not retrained. The sensors are now trained to the vehicle, diagnosis is complete. DOCUMENT all TPMS sensor identifiers on the applicable warranty claim.

Before installing a new sensor(s): If a sensor does not respond to the TPM Activation Tool, MOVE the vehicle to rotate the wheels at least one-fourth of a turn and ATTEMPT to activate the same sensor again. If the sensor still fails to train, ATTEMPT to train the sensor with the vehicle doors open. If the sensor(s) fails to train a second time, INSTALL a new TPMS sensor(s) for the sensor(s) in question. REFER to Tire Pressure Monitoring System (TPMS) Sensor .