LTPW Module Failure

NAME OF CODE
Low Tire Pressure Warning Module Failure

WHEN MONITORED
Ignition on.

SET CONDITION
The LTPW module monitors the tire pressure sensor/transmitter transmission approximately once a minute. The LTPW module stores the last 32 transmissions from the four tire pressure sensor/transmitters. It the LTPW module does not receive a transmission from any of its tire pressure sensor/transmitters for six consecutive ignition cycles lasting at least 15 minutes, the LTPW module will ground the Low Tire Pressure Warning Signal Circuit and set the Diagnostic Trouble Code (DTC). When the low tire pressure signal is grounded, the BCM will set its own DTC and illuminate the Low Tire" Lamp. If all four tire pressure sensor/transmitter should begin to transmit again during one ignition cycle, (an intermittent problem) the DTC will remain in memory and the Low Tire Pressure Warning Signal Circuit will become ungrounded. The DTC's set in the LTPW module and BCM will remain in memory and can be cleared using the DRB Ill scan tool.


POSSIBLE CAUSES
- Ignition turned on for 6 consecutive times for at least 15 minutes each and vehicle not driven above 33km/h (20mph).
- Wheels installed that do not have the tire pressure sensor/transmitters installed in them.
- All four tire pressure sensor/transmitters on vehicle not programmed to LTPW module.
- Faulty Low Tire Pressure Warning Module.