Diagnostic Procedure

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and combination meter harness connector M38.
3. Check harness continuity between ECM terminal 29 and meter terminal 2. Refer to WIRING DIAGRAM .

   Continuity should exist. 

4. Also check harness for short to ground and short to power.

OK or NG 

1. OK : GO TO  3.
2. NG : GO TO 2.

Check the following.

• Harness connectors M59, F27
• Harness for open or short between ECM and combination meter
  1. : Repair open circuit or short to ground or short to power in harness or connectors.

Make sure that speedometer functions properly.

OK or NG 

1. OK : GO TO  5.
2. NG : GO TO 4.

Check the following.

• Harness connectors E43, M65
• Harness connectors E32, E202
• Harness for open or short between combination meter and vehicle speed sensor
  1. : Repair harness or connectors. Check vehicle speed sensor and its circuit. Refer to "INSPECTION/VEHICLE SPEED SENSOR ".

Perform "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

: INSPECTION END.