Using Voltmeter
- Ensure battery is fully charged. Turn ignition off. Connect Test Harness (MB991529) and voltmeter to Data Link Connector (DLC), located below driver's side of instrument panel. See Fig 1
- Turn ignition on. Turn speed control main switch on. Record all DTCs displayed on voltmeter. DTCs are displayed as a series of needle sweeps. As an example: Code 24 is a 3 second pause, two 1.5 second sweeps, a 2 second pause and four .5 second sweeps.
- Using all DTCs obtained, proceed to SELF-DIAGNOSTICS
. Once all repairs are made, ensure DTCs are cleared from speed control ECM. See CLEARING DIAGNOSTIC TROUBLE CODES
.
- If no DTCs are present, proceed to TROUBLE SYMPTOMS
under SELF-DIAGNOSTICS.
Courtesy of CHRYSLER CORP.