Test G: The Tachometer Is Inoperative

PINPOINT TEST G: THE TACHOMETER IS INOPERATIVE

G1-G3:

G4:

Normal Operation
The engine speed is monitored by the powertrain control module (PCM) through the crankshaft position (CKP) sensor. The CKP is hardwired directly to the PCM. The status of the CKP is sent from the PCM to the instrument cluster over the communication network.

Possible Causes
- PCM
- instrument cluster