B1251

Tire Pressure Monitoring System (TPMS)

Pinpoint Test G: DTC B1251:00

Normal Operation

- DTC B1251:00 (Tire Pressure Sensor Low Battery: No Sub Type Information)- sets when there is a fault in the Tire Pressure Monitoring System (TPMS), such as a damaged or missing TPMS (Tire Pressure Monitoring System) sensor(s), or when attempting to train a TPMS (Tire Pressure Monitoring System) sensor(s) with a low battery. 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.

This pinpoint test is intended to diagnose the following:

- TPMS (Tire Pressure Monitoring System) sensor(s)

PINPOINT TEST G : DTC B1251:00

G1 TRAIN THE TIRE PRESSURE SENSORS TO DETERMINE THE INOPERATIVE SENSOR

- 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
CLEAR the DTCs. REPEAT the self-test. VERIFY system 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 does not respond, ATTEMPT to activate the same sensor again using the customer activation tool (if available). 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). REFER to Tire Pressure Monitoring System (TPMS) Sensor .