Inspection 8 Engine Speed Signal Malfunction

TROUBLE DIAGNOSIS


Inspection 8 Engine Speed Signal Malfunction

1.CHECK SPEEDOMETER
Start the engine, and then check the combination meter (tachometer) operation.
Does it operate normally?
YES - GO TO 2.
NO - Combination meter. Refer to Trouble Diagnosis.
2.CHECK RAS CONTROL UNIT CONNECTOR
1. Turn ignition switch OFF, disconnect RAS control unit harness connector, and check terminal for deformation, disconnection, looseness, etc.
2. Reconnect harness connector securely, and perform self-diagnosis.









Is above displayed on self-diagnosis display?
YES - RAS control unit malfunction. Replace RAS control unit.
NO - Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the terminal.