Diagnostic Routine H

Diagnostic Routine H

Diagnostic Overview

The Body Control Module Will Not Enter TPMS Sensor Training Mode

Normal Operation and Fault Conditions

REFER to Tire Pressure Monitoring System (TPMS) Function .

For the BCM (Body Control Module) to enter TPMS (Tire Pressure Monitoring System) 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 a valid vehicle speed sensor input of 0 km/h (0 mph). REFER to Tire Pressure Monitoring System (TPMS) Sensor Training - Intelligent Access (IA) Tire Pressure Monitoring System (TPMS) Sensor Training - Intelligent Access (IA) or REFER to Tire Pressure Monitoring System (TPMS) Sensor Training - Integrated Keyhead Transmitter (IKT) Tire Pressure Monitoring System (TPMS) Sensor Training - Integrated Keyhead Transmitter (IKT) for the complete sensor training procedure.

Visual Inspection and Diagnostic Pre-checks

- Inspect for correct stoplamp operation.

Pinpoint Test

1. CHECK THE IGNITION SWITCH INPUT

1. Ignition ON.

2. Using a scan tool, view BCM (Body Control Module) PID (Parameter Identification).

3. Monitor the BCM (Body Control Module) PID (Parameter Identification) (IGN_SW_STATE) with the ignition in the RUN position.

Does the PID (Parameter Identification) indicate the correct ignition switch position?








2. CHECK FOR VEHICLE SPEED-RELATED DTCs (Diagnostic Trouble Codes) IN THE PCM (Powertrain Control Module)

1. Using a scan tool, perform PCM (Powertrain Control Module) self-test.

Is DTC (Diagnostic Trouble Code) P0500 present?








3. CHECK THE STOPLAMP OPERATION

1. Ignition ON.

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

Do the stoplamps operate properly?








4. CHECK FOR CORRECT BCM (Body Control Module) OPERATION

1. Ignition OFF.

2. Disconnect and inspect all BCM (Body Control Module) connectors.

3. Repair:

- corrosion (install new connector or terminals- clean module pins).
- damaged or bent pins- install new terminals/pins.
- pushed-out pins- install new pins as necessary.

4. Reconnect the BCM (Body Control Module) connectors. Make sure they seat and latch correctly.

5. Operate the system and determine if the concern is still present.

Is the concern still present?