Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Dakota. However, it is still accessible from the selected car via links, so may be relevant.

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all FCM DTCs.
3. Turn the Highbeam Headlamps on.
4. With the scan tool read the DTC information.
  Does the scan tool read: B1633-LEFT HI BEAM CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 2.
  No
  - The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
(L33) LEFT HIGHBEAM OUTPUT CIRCUIT

Fig 1: Checking Left High beam Output Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the FCM C2 harness connector.
3. Measure the resistance between ground and the Left Highbeam Output circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace the Front Control Module (FCM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the (L33) Left Highbeam Output circuit for a short to ground condition.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .