Pinpoint Test G: Tire Pressure Monitoring System (TPMS)/Vehicle Security Module (VSM) Will Not Enter Sensor Training Mode When

Tire Pressure Monitoring System

Pinpoint Tests

Pinpoint Test G: Tire Pressure Monitoring System (TPMS)/Vehicle Security Module (VSM) Will Not Enter Sensor Training Mode When Using the TPMS Sensor Training Procedure

Normal Operation

For the Tire Pressure Monitoring System (TPMS)/Vehicle Security Module (VSM) to enter TPMS sensor training mode, the TPMS/VSM must receive valid inputs from the Brake Pedal Position (BPP) switch (OFF-ON-OFF) and ignition switch (both OFF and RUN), and it must receive valid Vehicle Speed Sensor (VSS) input (0 km/h [0 mph]). Refer to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training for the complete sensor training procedure.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- BPP switch
- Ignition switch
- TPMS/VSM



PINPOINT TEST G: TPMS/VSM WILL NOT ENTER SENSOR TRAINING MODE WHEN USING THE TPMS TRAINING PROCEDURE

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G1 CHECK THE TPMS BRAKE ON/OFF (TPMS_BOO) PID


- Connect the scan tool.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger - TPMS/VSM.
- Monitor the TPMS_BOO PID (TPMS receives the brake pedal information from the Instrument Cluster (IC)).
- Press and release the brake pedal while monitoring the PID.
- Do the brake pedal PID values match the brake pedal positions?

Yes
GO to G2.

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

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G2 CHECK THE TPMS IGNITION SWITCH PIDs


- Monitor the following ignition switch PIDs:
- Ignition Switch ACC (IGN_A_ECU)
- Ignition Switch RUN (IGN_R_ECU)
- Cycle the ignition switch to the RUN and OFF position while monitoring the PIDs (TPMS reads the ignition switch directly).
- Do the ignition switch status PID values match the ignition switch positions?

Yes
GO to G3.

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

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G3 CHECK THE TPMS VEHICLE SPEED (VSS_TPMS) PID


- Monitor the VSS_TPMS PID (TPMS receives vehicle speed from the IC).
- Is the vehicle speed less than 5 km/h (3 mph)?

Yes
GO to G4.

No
REFER to Instrument Panel, Gauges and Warning Indicators to continue diagnosis of the IC/vehicle speed concern.

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G4 CHECK FOR CORRECT TPMS OPERATION


- Disconnect all the TPMS/VSM electrical connectors.
- Check the connectors for:
- corrosion.
- pushed-out pins.
- spread terminals.
- Connect all the TPMS connectors and make sure that they are seated correctly.
- Attempt to train the TPMS sensors again. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training.
- Is the concern still present?

Yes
The TPMS sensors may not be present. DISMOUNT the tire. REFER to Wheel and Tire Overhaul. VERIFY that the sensors are present and mounted to the wheels. If missing, INSTALL new TPMS sensors.

If the TPMS sensors are present, INSTALL a new TPMS/VSM. REFER to Tire Pressure Monitoring System (TPMS) Module Service and Repair.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

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