Test H: The Speedometer/Odometer Is Inoperative

PINPOINT TEST H: THE SPEEDOMETER/ODOMETER IS INOPERATIVE

Normal Operation

The powertrain control module (PCM) calculates the vehicle speed from the transmission out[ut shaft speed (OSS) sensor input and from the tire size and axle ratio configuration in the PCM vehicle identification (VID) block. On diesel engines, the PCM receives the OSS data from the transmission control module (TCM). The PCM provides the instrument cluster with the vehicle speed data over the HS-CAN bus. The instrument cluster monitors the vehicle speed input and commands the speedometer with a corresponding movement of the pointer.

Possible Causes

- PCM
- Instrument cluster

Pinpoint Test H: H1:

Pinpoint Test H: H2:

Pinpoint Test H: H3:

Pinpoint Test H: H4:

Pinpoint Test H: H5:

Pinpoint Test H: H6: