Low Tire Pressure Indicator Always On

CIRCUIT DESCRIPTION
The Instrument Panel Cluster (IPC) turns the LOW TIRE Indicator ON for approximately 3 seconds when the ignition switch is turned to the RUN position during the IPC bulb check. If the EBCM/EBTCM sets a Diagnostic Trouble Code (DTC), the EBCM/EBTCM sends a class 2 message to the IPC commanding the LOW TIRE Indicator ON.

DIAGNOSTIC AIDS
^ Perform a thorough inspection of the wiring and connectors. Failure to carefully and fully inspect the wiring and the connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ Thoroughly inspect any circuitry that may be causing the complaint for the following conditions:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal-to-wiring connections
- Physical damage to the wiring harness

^ The following conditions may cause an intermittent malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation

^ If an intermittent malfunction exists refer to Intermittent and Poor Connections Diagnosis in Diagnostic Aids.






LOW TIRE PRESSURE INDICATOR IS ALWAYS ON