Diagnostic Test

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

1) CHECK FOR AN ACTIVE DTC
Turn the ignition on.

With the scan tool, record and erase DTCs.

Activate the Accessory Dimming.

With the scan tool, read DTCs.

Is the DTC active?

Yes
1. Go To 2).
No
1. The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .
2) CHECK (E22) INDICATOR DIMMER SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE

Fig 1: Checking Voltage On Indicator Dimmer Signal Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the Instrument Cluster C3 harness connector.

Disconnect the Switch Bank harness connector.

Disconnect the A/C Heater Control C1 (MTC) harness connector.

Turn the ignition on.

Check the voltage on the (E22) Indicator Dimmer Signal circuit.

Is the voltage above 0.5 volts?

Yes
1. Repair the (E22) Indicator Dimmer Signal circuit for a short to voltage.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .
No
1. Replace the Instrument Cluster in accordance with the service information.
2. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1) .