Test G: Incorrect Speedometer Indication
PINPOINT TEST G: INCORRECT SPEEDOMETER INDICATIONG1-G6:
G7-G8:
Normal Operation
The vehicle speed signal (VSS) is generated in the anti-lock brake system (ABS) and sent to the powertrain control module (PCM). The PCM transmits the VSS data to the instrument cluster over the communication network. If the instrument cluster fails to receive the VSS input from the PCM, the instrument cluster indicates 0 km/h (0 mph) on the speedometer.
Possible Causes
- ABS concern
- ABS module
- Instrument cluster