Test G: Incorrect Speedometer Indication

PINPOINT TEST G: INCORRECT SPEEDOMETER INDICATION

Normal Operation
The instrument cluster (IC) receives the vehicle speed sensor (VSS) signal from the PCM over the communication network. The PCM receives the VSS information from the ABS module based upon wheel speed data. The instrument cluster (IC) monitors the VSS input from the PCM and commands the speedometer with a corresponding movement of the pointer. The odometer is tamper resistant and accumulates and registers up to 1 million kilometers in metric mode or 1 million miles in English mode, based upon rolling count data sent from the PCM over the communication network.

This pinpoint test is intended to diagnose the following:
- Tire size configuration
- Axle ratio configuration
- PCM
- Instrument cluster (IC)

G1-G3:

G4-G6: