System Faults

SYSTEM FAULTS

NOTE: The Remote Tire Pressure Monitors (RTPM) are not internally serviceable. For a Sensor Failure or Low Battery fault, the RTPM must be replaced.

There are four conditions, which will cause a Tire Pressure Monitoring System fault to be set. All fault codes are associated with a specific wheel location.

1. If the EVIC detects a non-transmitting Sensor/ Transmitter in a road wheel for ten consecutive minutes with vehicle speed above 25 mph (40 kp/h), it will:
a. Store an active fault code.
b. Request a chime.
c. Display "TIRE SENSOR BAD / MISSING".
d. Display a dashed line at the wheel location on the graphic display if the display is activated.

When the EVIC detects:
2. A low pressure sensor battery status,
3 All five sensors transmitting at a shorter than expected interval or,
4. No valid pressure sensor ID from the spare tire for 20 consecutive ignition cycles spaced at least one hour apart, it will:
a. Store an active fault code.
b. Request a chime.
c. Display "TIRE SENSOR BAD / MISSING".

Use the DRBIII Input/Output function to further isolate the specific concern.

The DRBIII can be queried to determine the Sensor/Transmitter status:
- "Invalid Pressure" - The Sensor/Transmitter is reporting a negative pressure or a pressure above 434 kPa (63 psi).
- "Low Batt" - The Sensor/Transmitter has reported a low battery status for seven consecutive ignition cycles.
- "Trained" - The Sensor/Transmitter ID code is recognized by the EVIC.
- "Active" - The vehicle is moving at 40 km/h (25 mph) and/or the Sensor/Transmitter is "awake" and transmitting as expected by the EVIC.