AP Body
- Remove instrument cluster. See INSTRUMENT CLUSTER R & I
under REMOVAL & INSTALLATION. Check for battery voltage at cavity "J" of instrument cluster Gray 11-pin connector. See Fig 1
. Turn ignition on. Check for ignition/battery voltage at cavity "K" of instrument cluster Gray 11-pin connector. If battery voltage is not present at both locations, repair wiring as necessary.
- If battery voltage is present, check cavity "F" of instrument cluster Red connector for continuity to ground. If continuity is not present, repair wiring as necessary. See Fig 1
. If continuity is present, check for tachometer signal by connecting an AC digital voltmeter to ground and to cavity "H" of instrument cluster Gray connector.
- Voltage reading should be a minimum of one volt with engine running. If voltage is correct, go to step 5). If voltage is less than one volt, check wire for continuity between cavity "H" of instrument cluster Gray connector and pin No. 43 of engine controller (SBEC) connector. See Figure
and Fig 1
.
NOTE:
Engine controller (SBEC) is located in engine compartment, near the battery, and contains a 60-pin connector. See Figure
.
- If continuity is not present, repair wiring as necessary. Ensure engine controller (SBEC) and its connector do not have damaged pins or poor connections. If continuity exists between cavity "H" and pin No. 43 of engine controller, replace engine controller (SBEC).
- If all tests performed are good and tachometer is still inoperative, replace tachometer drive module. Tachometer drive module is attached to printed circuit board on rear of instrument cluster. If tachometer still remains inoperable, replace tachometer assembly.
Courtesy of CHRYSLER MOTORS.