Pinpoint Test

CHECK FOR COMMUNICATION WITH THE TPM MODULE
1. Using a scan tool, perform network test.
Does the TPM module pass the network test?
- Yes: GO to 2 .
- No: REFER to DIAGNOSTIC ROUTINE X : The Tire Pressure Monitor (TPM) Module Does Not Respond To The Scan Tool.

CHECK THE TPM MODULE COMMUNICATION CIRCUIT FOR A SHORT TO VOLTAGE

NOTE: Place the IA key in the backup slot for this pinpoint test.

Ignition OFF.
Disconnect: TPM Module.
Disconnect: RFA Module C2153E.
Ignition ON.

Measure:

TPM Module			Ground

C3641			Ground
Pin	Circuit	Measurement / Action	Pin	Circuit
3	VPL56 (BU/GY)		-	Ground

Is any voltage present?

Yes: REPAIR the circuit.
No: GO to 3 .

CHECK THE TPM MODULE COMMUNICATION CIRCUIT FOR AN OPEN OR SHORT TO GROUND

Ignition OFF.

Measure:

TPM Module			RFA Module

C3641			C2153E
Pin	Circuit	Measurement / Action	Pin	Circuit
3	VPL56 (BU/GY)		1	VPL56 (BU/GY)

Measure:

TPM Module			Ground

C3641			Ground
Pin	Circuit	Measurement / Action	Pin	Circuit
3	VPL56 (BU/GY)		-	Ground

Is the resistance less than 3 ohms between the TPM module and the RFA module; and greater than 10, 000 ohms between the TPM module and ground?

Yes: INSTALL a new TPM module. REFER to TIRE PRESSURE MONITOR (TPM) MODULE . CLEAR the DTCs . REPEAT the TPM module self-test. If the concern is still present, GO to 4 .
No: REPAIR the circuit.

CHECK FOR CORRECT RFA MODULE OPERATION
1. Disconnect and inspect all the RFA module connectors.
2. Repair:
  - corrosion (replace connector or terminals - clean module pins)
  - damaged or bent pins - replace terminals/pins
  - pushed-out pins - replace pins as necessary
3. Connect all the RFA module connectors. Make sure they seat and latch correctly.
4. Operate the system and verify the concern is still present.
Is the concern still present?
- Yes: CHECK OASIS for any applicable TSBs . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new RFA module. REFER to REMOTE FUNCTION ACTUATOR (RFA) MODULE .
- No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.