Pinpoint Test E: The Body Control Module (BCM) Cannot Enter Sensor Training Mode When Using The Tire Pressure Monitoring System

Tire Pressure Monitoring System (TPMS)

Pinpoint Test E: The Body Control Module (BCM) Cannot Enter Sensor Training Mode When Using the Tire Pressure Monitoring System (TPMS) Sensor Training Procedure

Normal Operation

For the Body Control Module (BCM) to enter Tire Pressure Monitoring System (TPMS) sensor training mode, the BCM (Body Control Module) must receive valid inputs from the stoplamp switch (off) and ignition switch (run), and it must receive valid vehicle speed sensor input (0 km/h [0 mph]). Refer to Tire Pressure Monitoring System (TPMS) Sensor Training for the complete sensor training procedure.

This pinpoint test is intended to diagnose the following:

- Stoplamp switch concern

- Ignition switch concern

- BCM (Body Control Module)

PINPOINT TEST E : THE BCM (Body Control Module) CANNOT ENTER SENSOR TRAINING MODE WHEN USING THE TPM (Tire Pressure Monitor) SENSOR TRAINING PROCEDURE

E1 CHECK THE STOPLAMP OPERATION

- Ignition ON.

- Press and release the brake pedal while monitoring the stoplamps.

Do the stoplamps operate properly?

Yes
GO to E2.
No
REFER to Lighting and Horns to continue diagnosis of the stoplamp switch.

E2 CHECK THE IGNITION SWITCH INPUT

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: BCM (Body Control Module) DataLogger.

- Monitor the BCM (Body Control Module) ignition switch PID (IGN_SW_STATE) with the ignition in the RUN position.

Does the PID indicate the correct ignition switch position?

Yes
GO to E3.
No
REFER to Steering Column to continue diagnosis of the ignition switch.

E3 CHECK FOR VEHICLE SPEED-RELATED DTCs IN THE BCM (Body Control Module)

- Carry out the BCM (Body Control Module) self-test.

Are any vehicle speed-related DTCs present?

Yes
REFER to the BCM (Body Control Module) DTC Chart in Body Control Systems. Tire Monitoring System
No
GO to E4.

E4 CHECK FOR CORRECT BCM (Body Control Module) OPERATION

- Disconnect all the BCM (Body Control Module) connectors.

- Check the connectors for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the BCM (Body Control Module) connectors and make sure that they are seated correctly.

- Operate the system and verify the concern is still present.

Is the concern still present?

Yes
INSTALL a new BCM (Body Control Module). TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.