Pinpoint Test A : B1182:00
NOTE:
Make sure that all aftermarket electronic equipment has been disconnected (if possible) and that the customer has been questioned about the kinds of electronic equipment they may have been using in the vehicle when this concern was identified.
NOTE:
A spare tire cannot be programmed to the vehicle, even if equipped with a TPMS sensor. If a damaged road wheel is located in the trunk and the TPM module cannot communicate with it, or if the damaged wheel has been dropped off at a dealership or repair shop, the BCM sets a TPMS sensor fault. Repair and remount the road wheel as necessary to restore system operation.
- A1 CHECK FOR COMMUNICATION WITH THE TPM MODULE
- Ignition ON.
- Using a diagnostic scan tool, carry out the TPM self-test.
NOTE: The TPM module is also known as the Radio Transceiver Module (RTM).Are any DTCs present in the TPM ?
Yes GO to the DTC Chart: TPM in DTC Chart . No If the TPM does not communicate with the diagnostic scan tool, Go to Pinpoint Test X . If there are no DTCs present in the TPM, GO to A2. - A2 CHECK TPMS PIDs
- Using a diagnostic scan tool, view the BCM PIDs.
- Monitor the TPMS status PID TPMS_STAT.
Does the TPMS_STAT PID display SYSTEM FAULT?
Yes GO to A3. No GO to A5. - A3 CARRY OUT THE SENSOR TRAINING PROCEDURE
- 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 was 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 A4. - A4 ATTEMPT TO CARRY OUT THE SENSOR TRAINING PROCEDURE AGAIN
- Move the vehicle to rotate the wheels at least one-fourth of a turn. Leave the vehicle doors open. Start the sensor training procedure at a different wheel.
- 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 any of the TPMS sensors transmit correctly and did the horn sound when each sensor was trained?
Yes If some of the sensors trained, INSTALL a new TPMS for each sensor that failed to train. Refer to Tire Pressure Monitoring System (TPMS) Sensor . If all the sensors trained, 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 A5. - A5 CHECK FOR CORRECT BCM OPERATION
- Ignition OFF.
- Disconnect and inspect all BCM connectors.
- Repair:
- Connect 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 The sensors may not be present. DISASSEMBLE all 4 wheels and tires. REFER to Wheels and Tires . VERIFY all 4 TPMS sensors are present. If any sensors are missing, INSTALL new sensor. REFER to Tire Pressure Monitoring System (TPMS) Sensor . CLEAR the DTCs. If all 4 sensors are present, 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), CLEAR the DTCs. 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.