Diesel Data: Automotive Repair

Tachometer Malfunction

Tachometer Malfunction

DESCRIPTION

The NO.1 meter ECU receives engine revolution signals from the ECM via the CAN line. The NO.1 meter ECU displays engine revolution data that is calculated based on the data received from the ECM.

Wiring Diagram:






Step 1-2:




Step 2 (Continued)-4:




Step 4 (Continued)-6:




INSPECTION PROCEDURE