Diagnosis And Testing - Multiple/Individual Gauges Inoperative

Test speedometer, tachometer and other gauges for malfunction:

1. Remove the cluster (Refer to REMOVAL ).
2. Check for ignition voltage at Pin 15 of the cluster wire harness connector (Fig 1). Check for battery voltage at Pin 21 of the connector. If no voltage, repair as necessary.
   Fig 1: Identifying Cluster Wire Harness Connector And Pin-Out View

   Courtesy of DAIMLERCHRYSLER CORP.
   INSTRUMENT CLUSTER CONNECTOR PIN CALL-OUT DESCRIPTION
   
   

   PIN	DESCRIPTION
   1	REAR FOG LAMP FEED
   2	PCI BUS
   3	COURTESY LAMPS
   4	SPARE - BASE CLUSTER/FOG LAMP SWITCH OUTPUT
   5	VTSS INDICATOR DRIVER
   6	PANEL LAMPS DIMMER SIGNAL
   7	FUEL LEVEL SENSOR SIGNAL
   8	NOT USED
   9	IGNITION RUN/START - AUTOSTICK ONLY, NOT USED
   10	GROUND
   11	NOT USED
   12	PANEL LAMPS DRIVER
   13	PASSENGER DOOR AJAR/KEYLESS ENTRY SIGNAL
   14	PARK LAMP SWITCH OUTPUT
   15	IGNITION OFF/RUN/START - AUTOSTICK ONLY, FUSED IGNITION SWITCH OUTPUT (RUN-START)
   16	LEFT TURN LAMP OUTPUT
   17	RIGHT TURN LAMP OUTPUT
   18	LEFT TURN SIGNAL INPUT
   19	RIGHT TURN SIGNAL INPUT
   20	LOW BEAM OUTPUT
   21	M1 BATTERY
   22	RED BRAKE WARNING INDICATOR DRIVER
   23	KEY-IN IGNITION SWITCH SENSE
   24	DRIVER DOOR AJAR SWITCH SENSE
   25	SEAT BELT SWITCH SENSE
   26	DIMMER SWITCH HIGH BEAM OUTPUT

3. Check Pin 10 of the connector for continuity to ground. If no ground, repair as necessary.
4. If the voltage and ground are OK, and the pins or the connectors are not damaged nor spread, replace the instrument cluster.
5. Install cluster (Refer to INSTALLATION ).