Diagnostic Test

1) TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC's

Operate the door locks several times.

Cycle the ignition from on to off.

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display: B211A-IGNITION RUN/ACC CONTROL CIRCUIT LOW?

Yes
1. Go To 2).
No
1. The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
2. Perform BODY VERIFICATION TEST - VER 1 .
2) IGNITION RUN/ACC RELAY SHORTED

Fig 1: Checking Ignition RUN/ACC/SPAD Relay
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the Cluster C2 connector.

Remove the PDC fuse #13.

Measure the resistance between ground and the (F103) Ignition Run/ACC Relay Control circuit in the Cluster C2 connector

Is the resistance below 1000.0 ohms?

No
1. Replace the Instrument Cluster in accordance with Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .
Yes
1. Go To 3).
3) (F103) IGNITION RUN/ACC RELAY CONTROL CIRCUIT SHORT TO GROUND

Fig 2: Checking Ignition RUN/ACC/SPAD Relay Control Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Disconnect the Junction Block C2 connector (on top of junction block).

Measure the resistance between ground and the (F103) Ignition Run/ACC Relay Control circuit in the Cluster C2 connector.

Is the resistance below 1000.0 ohms?

Yes
1. Repair the (F103) Ignition Run/ACC Relay Control circuit for a short to ground.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Replace the Junction Block in accordance with Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .