Instrument Cluster Prove-Out
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The instrument cluster and other vehicle modules carry out a display prove-out to verify that all module controlled warning/indicator lamps and monitored systems are functioning correctly within the instrument cluster. The instrument cluster and other modules such as the restraints control module (RCM) provide a timed prove-out while other indicators illuminate until engine start up. When the ignition switch is cycled to the ON position with the engine off, the indicators illuminate to prove-out according the following table:
| Indicator | Controlling Module | Indicator Type | Prove-Out Duration |
|---|---|---|---|
| Air bag | Restraints control module (RCM) | Warning | 6 seconds |
| ABS | Instrument cluster | Warning | 3 seconds |
| Anti-theft | Instrument cluster | Indicator | Approx. 2 seconds (if the system is operating correctly) |
| Brake | Instrument cluster | Warning | 3 seconds |
| Charging system | Instrument cluster | Warning | Until engine startup |
| Check fuel cap indicator | Instrument cluster | Informational | 3 seconds |
| Door ajar warning indicator | Instrument cluster | Warning | None |
| High beam indicator | Instrument cluster | Informational | None |
| Low fuel indicator | Instrument cluster | Informational | None |
| Low oil pressure warning indicator | Instrument cluster | Warning | Until engine startup |
| Low washer fluid indicator | Instrument cluster | Informational | 3 seconds |
| Malfunction indicator lamp (MIL) | PCM | Warning | Until engine startup |
| Overdrive off indicator | Transmission control module (TCM) | Informational | None |
| Safety belt warning indicator | RCM | Warning | 70 seconds if the safety belt is unbuckled, turns off when the safety belt is buckled |
| Speed control indicator | Instrument cluster | Informational | None |
| Tire pressure monitoring system (TPMS) warning indicator | Instrument cluster | Warning | 3 seconds |
| Traction assist indicator | Instrument cluster | Warning | 3 seconds |
| Wrench indicator | Instrument cluster | Warning | 3 seconds |
| RH/LH turn indicators | Instrument cluster | Informational | None |