Diagnostic Test

Turn the ignition on.

With the Scan Tool, clear all BCM DTC's.

Turn the High Beams on.

With the Scan Tool, read the DTC information.

Does the Scan Tool read: HIGH BEAM RELAY CIRCUIT HIGH? 

Yes 

1. Go to step  2).

No 

1. The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins that may apply. Visually inspect the related wiring harness and connector terminals.
2. Perform BODY VERIFICATION TEST .

Turn the ignition off.

Check the Junction Block to make certain the High Beam Relay is present.

Is the High Beam Relay present? 

Yes 

1. Go to step  3).

No 

1. Replace the missing High Beam Relay.
2. Perform BODY VERIFICATION TEST .

Turn the ignition off.

Check the Junction Block High Beam fuses 26 and 27.

Are any of the fuses open? 

Yes 

1. Replace the open fuse.
2. Perform BODY VERIFICATION TEST .

No 

1. Go to step  4).

Turn the ignition off.

Install a known good relay in place of the High Beam Relay.

Turn the High Beams On.

Do the High Beams operate normally? 

Yes 

1. Replace the High Beam Relay.
2. Perform BODY VERIFICATION TEST .

No 

1. Go to step  5).

Fig 1: Measuring Resistance Of Headlamp Switch Sense Circuit

Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Multifunction Switch harness connector C1.

Disconnect the BCM C2 connector.

Measure the resistance of the High Beam Switch Sense circuit.

Is the resistance below 5.0 ohms? 

Yes 

1. Replace the Multifunction Switch.
2. Perform BODY VERIFICATION TEST .

No 

1. Repair the High Beam Switch Sense circuit for an open condition.
2. Perform BODY VERIFICATION TEST .