TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the TPM Module harness connector.
Using a 12-volt test light connected to 12-volts, check the ground circuit.
Does the test light illuminate?
All
Yes → Go To 4
No → Repair the ground circuit for an open.
Perform TIRE PRESSURE MONITORING SYSTEM VERIFICA-
TION TEST.
4 Turn the ignition off.
Disconnect the BCM harness connector.
Disconnect the TPM Module harness connector.
Turn the ignition on.
Measure the voltage between Low Tire Pressure Signal circuit and ground.
Is there any voltage present?
All
Yes → Repair the Low Tire Pressure Signal circuit for a short to voltage.
Perform TIRE PRESSURE MONITORING SYSTEM VERIFICA-
TION TEST.
No → Go To 5
5 Turn the ignition off.
Disconnect the BCM harness connector.
Disconnect the TPM Module harness connector.
Using a 12-volt test light connected to 12-volts, check the Low Tire Pressure Signal
circuit.
Does the test light illuminate?
All
Yes → Repair the Low Tire Pressure Signal circuit for a short to ground.
Perform TIRE PRESSURE MONITORING SYSTEM VERIFICA-
TION TEST.
No → Go To 6
6 Turn the ignition off.
Disconnect the BCM harness connector(s).
Disconnect the TPM Module harness connector.
Measure the resistance of the Low Tire Pressure Signal circuit between the BCM
connector and the TPM Module connector.
Is the resistance below 5.0 ohms?
All
Yes → Go To 7
No → Repair the Low Tire Pressure Signal circuit for an open.
Perform TIRE PRESSURE MONITORING SYSTEM VERIFICA-
TION TEST.
380
TIRE PRESSURE MONITORING
TPM DIAGNOSTIC - BCM — Continued
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