Pinpoint Test F: Tire Pressure Monitoring System (TPMS) Indicator FLASHES For 70 Seconds and Then Remains ON Solid When The Ign
Tire Pressure Monitoring System
Pinpoint Tests
Pinpoint Test F: Tire Pressure Monitoring System (TPMS) Indicator FLASHES For 70 Seconds and Then Remains ON Solid When the Ignition Key is Turned to the ON Position, the Message Center (if equipped) Displays TIRE PRESSURE SENSOR FAULT or TIRE PRESSURE MONITOR FAULT and DTC B2872 or B287A is Present
NOTE: A full-sized, matching spare wheel and tire, that is identical to the road wheel and tire, is available as an optional accessory. This spare wheel and tire is equipped with a tire pressure sensor but the sensor is not initially programmed to the Driver Door Module (DDM).
If this spare wheel and tire is in use on the vehicle, the sensor must be trained to the DDM and the remaining 3 sensors must be retrained to the DDM as well. If all 4 sensors are not trained to the DDM, the Tire Pressure Monitoring System (TPMS) warning indicator will illuminate.
Make sure that all the wheels and tires installed on the vehicle are inflated to the correct pressure and trained to the DDM before attempting to diagnose a TPMS concern. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training.
Normal Operation
If there is a fault in the TPMS, such as a damaged or missing sensor(s), damaged module or a communication issue within the vehicle, DTCs are set in the DDM, the TPMS warning indicator will flash for 70 seconds and then remain ON solid when the ignition switch is turned to the ON position and the message center (if equipped) will display TIRE PRESSURE SENSOR FAULT. When any of the tire pressure sensors are faulted or not responding, the DDM will set DTC B2872 and the message center (if equipped) will display TIRE PRESSURE SENSOR FAULT. When the DDM does not get a response from any of the tire pressure sensors, DTC B287A will be set and the message center (if equipped) will display TIRE PRESSURE MONITOR FAULT.
- DTC B2872 (Tire Pressure Sensor Fault) - When 1, 2 or 3 of the tire pressure sensors are faulted or not responding, the DDM will set DTC B2872.
- DTC B287A (Tire Pressure Monitor Fault) - When all 4 of the tire pressure sensors are faulted, not responding or not heard by the DDM, the DDM will set DTC B287A.
This pinpoint test is intended to diagnose the following:
- TPMS sensor(s) missing
- TPMS sensor(s) not trained to the vehicle
- TPMS sensor(s) swapped due to wheel swap
- TPMS sensor(s) damaged
- Vehicle communication issue
- DDM antenna
- DDM
PINPOINT TEST F: TPMS INDICATOR FLASHES FOR 70 SECONDS AND THEN REMAINS ON SOLID WHEN THE IGNITION KEY IS TURNED TO THE ON POSITION, THE MESSAGE CENTER (IF EQUIPPED) DISPLAYS TIRE PRESSURE SENSOR FAULT OR TIRE PRESSURE MONITOR FAULT AND DTC B2872 OR B287A IS PRESENT
NOTE: If a warranty case is opened for an actual TPMS fault, document and include the actual tire pressure data in all warranty communications.
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F1 CHECK FOR DTCs
- Connect the scan tool.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger DDM .
- Retrieve and record the following PIDs:
- Left Front Pressure Sensor Identifier (LF_ID)
- Right Front Pressure Sensor Identifier (RF_ID)
- Left Rear Pressure Sensor Identifier (LR_ID)
- Right Rear Pressure Sensor Identifier (RR_ID)
- Is DTC B287A present?
Yes
GO to F3.
No
If DTC B2872 is present, GO to F2.
For all other DDM DTCs, REFER to Handles, Locks, Latches and Entry Systems Testing and Inspection.
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F2 CARRY OUT THE SENSOR TRAINING PROCEDURE
- Train all 4 tire pressure sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training.
- Did all of the tire pressure sensors transmit correctly and did the horn sound when each tire pressure sensor transmitted to the DDM?
Yes
Using the scan tool, LOCATE the updated TPMS sensor identifiers trained to the DDM module.
COMPARE these values to those recorded prior to the TPMS sensor training procedure. Disregarding sensor position (the system is not affected by tire rotation), 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 sensor identifiers on the applicable warranty claim.
VERIFY system operation.
No
Before installing a new sensor(s): If a sensor(s) does not respond to the special tool, ATTEMPT to activate the same sensor(s) with the Tire Pressure Monitor Activation Tool. If the sensor(s) still does not respond, MOVE the vehicle to rotate the wheels at least one-fourth turn and ATTEMPT to activate the same sensor(s) again.
If the sensor(s) fail to train a second time, INSTALL a new tire pressure sensor(s). REFER to Tire Pressure Monitoring System (TPMS) Sensor Tire Pressure Monitoring System (TPMS) Sensor.
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F3 CHECK FOR CORRECT TPMS OPERATION
- Train all 4 tire pressure sensors. Refer to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training.
- Did all of the tire pressure sensors transmit correctly and did the horn sound when each tire pressure sensor transmitted to the DDM?
Yes
Using the scan tool, LOCATE the updated TPMS sensor identifiers trained to the DDM module.
COMPARE these values to those recorded prior to the TPMS sensor training procedure. Disregarding sensor position (the system is not affected by tire rotation), 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 sensor identifiers on the applicable warranty claim.
VERIFY system operation.
No
Before diagnosing the DDM: If the sensors do not respond to the special tool, ATTEMPT to activate the same sensor(s) with the Tire Pressure Monitor Activation Tool. If the sensor(s) still does not respond, MOVE the vehicle to rotate the wheels at least one-fourth turn and ATTEMPT to activate the same sensor(s) again.
NOTE: The sensors may not be present. DISMOUNT the wheel and tire, REFER to Wheel and Tire Overhaul. VERIFY that the sensors are present and mounted to the wheels, INSTALL sensor(s) as necessary. TRAIN the sensors. REFER to Tire Pressure Monitoring System (TPMS) Sensor Training Tire Pressure Monitoring System (TPMS) Sensor Training.
If the sensors are present, but all of them failed to train the second time, GO to F4.
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F4 CHECK FOR CORRECT DDM AND DDM ANTENNA OPERATION
- Disconnect all the DDM electrical connectors.
- Check the connectors for:
- corrosion.
- pushed-out pins.
- spread terminals.
- Connect all the DDM connectors and make sure that they are seated correctly.
- Attempt to train the system and verify the concern is still present.
- Is the concern still present?
Yes
GO to F5.
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.
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F5 CHECK FOR CORRECT DDM ANTENNA OPERATION
- Connect the scan tool.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: DataLogger DDM .
- Retrieve and record the last received tire transmitter ID code value (LST_ID).
- NOTE: The sensor identifiers can be in any order, as the wheels may have been rotated. Make sure that the module can hear each of the recorded sensor identifiers.
- Using the Tire Pressure Monitor Activation Tool, ping each sensor and monitor the PID (LST_ID) after attempting to wake up each sensor. Compare the value of this PID after each ping to the list of sensor identifiers recorded previously in F1. It should display each of the sensor identifiers.
- Did the PID transition between each recorded sensor identifiers as each sensor was pinged with the training tool?
Yes
INSTALL a new DDM. REFER to Handles, Locks, Latches and Entry Systems Service and Repair. CLEAR the DTCs. REPEAT the self-test.
No
INSTALL a new DDM antenna. REFER to Handles, Locks, Latches and Entry Systems Service and Repair. CLEAR the DTCs. REPEAT the self-test. REFER to Wiring Diagrams Component Location Views for antenna connector location information. Diagrams By Number
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