PINPOINT TEST F : Diagnosing Radio Frequency Interference Faults
- F1 VERIFY TPM MODULE COMMUNICATION
- Using a diagnostic scan tool, carry out the Network Test.
NOTE: The TPM module is also known as the Radio Transceiver Module (RTM).Does the TPM module pass the Network Test?
Yes GO to F2. No Go to Pinpoint Test X - F2 CHECK FOR TPM MODULE DTC U0140:87NOTE: Make sure all aftermarket electronic equipment has been disconnected (if possible) and the customer has been questioned about the types of electronic equipment they may have been using in the vehicle when the concern was first identified.
- Using a diagnostic scan tool, carry out the TPM module self-test.
NOTE: The TPM module is also known as the Radio Transceiver Module (RTM).Is DTC U0140:87 present in the TPM module?
Yes GO to Pinpoint Test E No GO to F3. - F3 VIEW THE BCM TPMS_STAT PID
- Ignition ON.
- Using a diagnostic scan tool, view the BCM PIDs.
- Monitor the BCM TPMS_STAT PID.
Does the BCM TPMS_STAT PID display SYSTEM FAULT?
Yes GO to F4. No GO to F5. - F4 CARRY OUT THE SENSOR TRAINING PROCEDURENOTE: Before beginning TPMS sensor training, make sure the vehicle is away from other vehicles, or devices that might cause RFI such as electric motors or radio transmitters.
- Train all 4 TPMS sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training - Intelligent Access (IA) or refer to Tire Pressure Monitoring System (TPMS) Sensor Training - Integrated Keyhead Transmitter (IKT) .
Did all of the TPMS sensors transmit correctly and did the horn sound when each sensor is trained?
Yes The system is operating correctly at this time. The concern may have been caused by RFI. Refer to Tire Pressure Monitoring System , Radio Frequency Interference and refer to Tire Pressure Monitoring System , TPMS PID Definitions for information on locating sources of RFI. No GO to F5. - F5 ATTEMPT TO CARRY OUT THE SENSOR TRAINING PROCEDURE AGAIN USING KNOWN GOOD SENSORS
- Move the vehicle to rotate the wheels at least one-fourth of a turn. Leave the vehicle doors open.
- Attempt to train known good TPMS sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training - Intelligent Access (IA) or refer to Tire Pressure Monitoring System (TPMS) Sensor Training - Integrated Keyhead Transmitter (IKT) .
Did the known good TPMS sensors transmit correctly and did the horn sound when the known good TPMS sensors were trained?
Yes If some of the sensors trained, INSTALL a new TPMS sensor for each sensor that failed to train. REFER to Tire Pressure Monitoring System (TPMS) Sensor . If all the known good sensors trained, INSTALL new sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor . No INSTALL a new TPM module. Refer to Tire Pressure Monitor (TPM) Module . TEST the system for normal operation. If the concern is still present, GO to F6. - F6 CHECK FOR CORRECT BCM OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM connectors.
- Repair:
- Reconnect the BCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if 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 BCM. REFER to Multifunction Electronic Modules - With Intelligent Access (IA) or REFER to Multifunction Electronic Modules - Without Intelligent Access (IA) 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. CLEAR the DTCs.