Pinpoint Test F: The Tire Pressure Monitoring System (TPMS) Warning Indicator Illuminates With DTCs Present
Tire Pressure Monitoring System (TPMS)
Pinpoint Test F: The Tire Pressure Monitoring System (TPMS) Warning Indicator Illuminates With DTCs Present
Normal Operation
If there is a fault with 1, 2 or 3 of the Tire Pressure Monitoring System (TPMS) sensors, DTC B124D:02 sets. The TPMS (Tire Pressure Monitoring System) warning indicator flashes for 70 seconds and then remains on continuously when the ignition switch is turned to the ON position and the message center displays TIRE PRESSURE SENSOR FAULT.
If the TPM (Tire Pressure Monitor) module does not get a response from all 4 of the TPMS (Tire Pressure Monitoring System) sensors and transfers that information to the BCM (Body Control Module), DTC B1182:00 sets and the message center displays TIRE PRESSURE MONITOR FAULT.
It should be noted that TPMS (Tire Pressure Monitoring System) sensor communication to the TPM (Tire Pressure Monitor) module can be interrupted by radio frequency noise, which can cause intermittent issues that are not vehicle concerns. Radio frequency noise is generated by electrical motors and appliance operation, cellular telephones, remote transmitters, power inverters and portable entertainment equipment. Anytime the TPMS (Tire Pressure Monitoring System) sensor training procedure is performed successfully, the warning indicator is extinguished and the vehicle must be driven for 18-20 minutes before the TPM (Tire Pressure Monitor) module sets a fault.
- DTC B1182:00 (Tire Pressure Monitoring System (TPMS) : No Sub Type Information)- set by the BCM (Body Control Module) when all 4 of the tire pressure sensors are faulted, not responding or not heard by the TPM (Tire Pressure Monitor) module.
- DTC B124D:02 (Tire Pressure Sensor: General Signal Failure)- set by the BCM (Body Control Module) when 1, 2 or 3 of the tire pressure sensors are faulted, not responding or not heard by the TPM (Tire Pressure Monitor) module.
- TPMS_STAT PID (Parameter Identification) = SENSOR FAULT- when the BCM (Body Control Module) does not receive the tire pressure status for 1 to 3 TPMS (Tire Pressure Monitoring System) sensors from the TPM (Tire Pressure Monitor) module for 20 minutes with vehicle speed above 32 km/h (20 mph).
- TP_STAT PID (Parameter Identification) = SYSTEM FAULT when the BCM (Body Control Module) does not receive a signal transmission from all 4TPMS (Tire Pressure Monitoring System) sensors from the TPM (Tire Pressure Monitor) module for 20 minutes with vehicle speed above 32 km/h (20 mph).
This pinpoint test is intended to diagnose the following:
- Not all TPMS (Tire Pressure Monitoring System) sensors are installed
- TPMS (Tire Pressure Monitoring System) sensors not trained
- TPMS (Tire Pressure Monitoring System) sensor(s)
- TPM (Tire Pressure Monitor) module wiring
- TPM (Tire Pressure Monitor) module
- BCM (Body Control Module) wiring
- BCM (Body Control Module)
PINPOINT TEST F : THE TPMS (Tire Pressure Monitoring System) WARNING INDICATOR ILLUMINATES WITH DTCs PRESENT
NOTE:
If a warranty case is opened for an actual TPMS (Tire Pressure Monitoring System) fault, document and include the actual tire pressure data in all warranty communications.
NOTE:
If the vehicle has been stationary for more than 30 minutes, the sensors go into a "sleep mode" to conserve battery power. It is necessary to wake them up so that they transmit the latest tire pressure information to the TPM (Tire Pressure Monitor) module.
F1 VERIFY TPM (Tire Pressure Monitor) MODULE COMMUNICATION
- Ignition ON.
- Using a scan tool, carry out the Network Test.
Does the TPM (Tire Pressure Monitor) module pass the Network Test?
Yes
GO to F2.
No
REFER to Information Bus to diagnose the TPM (Tire Pressure Monitor) module does not respond to the scan tool.
F2 CHECK THE SENSOR IDENTIFIER PIDs (Parameter Identifications) AND SYSTEM STATUS PID (Parameter Identification)
- Enter the following diagnostic mode on the scan tool: DataLogger- BCM (Body Control Module).
- Read and record the following PIDs (Parameter Identifications) :
- Left Front Tire Transmitter Identifier (TPM_S_ID_LF)
- Right Front Tire Transmitter Identifier (TPM_S_ID_RF)
- Left Rear Tire Transmitter Identifier (TPM_S_ID_LRO)
- Right Rear Tire Transmitter Identifier (TPM_S_ID_RRO)
- Monitor the TPMS (Tire Pressure Monitoring System) system status (TPMS_STAT) PID (Parameter Identification).
Does the TPMS_STAT PID (Parameter Identification) display SENSOR FAULT?
Yes
GO to F3.
No
If the TPMS_STAT PID (Parameter Identification) displays SYSTEM FAULT, GO to F4.
F3 CARRY OUT THE SENSOR TRAINING PROCEDURE (SENSOR FAULT)
- Train all 4 tire pressure sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training .
Did all of the tire pressure sensors transmit correctly and did the horn sound when each TPMS (Tire Pressure Monitoring System) sensor transmitted to the TPM (Tire Pressure Monitor) module?
Yes
Using the scan tool, LOCATE the updated TPMS (Tire Pressure Monitoring System) sensor identifiers trained to the BCM (Body Control Module) module.
COMPARE these values to those recorded prior to the TPMS (Tire Pressure Monitoring System) sensor training procedure. Disregarding sensor position, any sensor identifiers that do not match those retrieved from the module were changed, but not retrained. The sensors are now trained to the vehicle, diagnosis is complete.
DOCUMENT all TPMS (Tire Pressure Monitoring System) sensor identifiers on the applicable warranty claim.
TEST the system for normal operation.
No
Before installing a new sensor(s): If a sensor does not respond to the Tire Pressure Monitor Activation Tool, MOVE the vehicle to rotate the wheels at least one-fourth of a turn and ATTEMPT to activate the same sensor again.
If the sensor still fails to train, ATTEMPT to train the sensor with the vehicle doors open.
If the sensor(s) fails to train a second time, INSTALL a new TPMS (Tire Pressure Monitoring System) sensor(s) for the sensor(s) in question. REFER to Tire Pressure Monitoring System (TPMS) Sensor .
F4 CARRY OUT THE SENSOR TRAINING PROCEDURE (SYSTEM FAULT)
- Train all 4 tire pressure sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training .
Did all of the tire pressure sensors transmit correctly and did the horn sound when each TPMS (Tire Pressure Monitoring System) sensor transmitted to the TPM (Tire Pressure Monitor) module?
Yes
Using the scan tool, LOCATE the updated TPMS (Tire Pressure Monitoring System) sensor identifiers trained to the BCM (Body Control Module) module.
COMPARE these values to those recorded prior to the Tire Pressure Monitoring System (TPMS) Sensor Training procedure. Disregarding sensor position, any sensor identifiers that do not match those retrieved from the module were changed, but not retrained. The sensors are now trained to the vehicle, diagnosis is complete.
DOCUMENT all TPMS (Tire Pressure Monitoring System) sensor identifiers on the applicable warranty claim.
TEST the system for normal operation.
No
Before installing a TPM (Tire Pressure Monitor) module: If sensors do not respond to the Tire Pressure Monitor Activation Tool, MOVE the vehicle to rotate the wheels at least one-fourth of a turn and ATTEMPT to activate the same sensors again. If the sensors still fail to train, ATTEMPT to train the sensors with the vehicle doors open.
If the sensors still fail to train, INSTALL a new TPM (Tire Pressure Monitor) module. REFER to Tire Pressure Monitor (TPM) Module .
TEST the system for normal operation. If the concern is still present, GO to F5.
F5 CHECK FOR CORRECT BCM (Body Control Module) OPERATION
- Disconnect all the BCM (Body Control Module) electrical connectors.
- Check the connectors for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the BCM (Body Control Module) connectors and make sure that they are seated correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes
NOTE: The TPMS (Tire Pressure Monitoring System) sensors may not be present. DISMOUNT the tire. REFER to Wheel and Tire . VERIFY the TPMS (Tire Pressure Monitoring System) sensors are present and mounted to the wheels. If missing, INSTALL new TPMS (Tire Pressure Monitoring System) sensors.
If the TPMS (Tire Pressure Monitoring System) sensors are present, INSTALL a new BCM (Body Control Module). CLEAR the DTCs. REPEAT the self-test.
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.