Low Beam Headlamps Will Not Turn On - Chrysler Concorde 2004 Service Manual

EXTERIOR LIGHTING
Symptom:

*LOW BEAM HEADLAMPS WILL NOT TURN ON

HEADLAMP SWITCH
JUNCTION BLOCK
LOW BEAM HEADLAMP RELAY
LOW BEAM RELAY
LOW BEAM HEADLAMP RELAY
JUNCTION BLOCK
BODY CONTROL MODULE
OPEN FUSED B+ TO JUNCTION BLOCK
B+ CIRCUIT FUSE
FUSED B+ CIRCUIT SHORT TO GROUND
TEST
1 Turn the Headlamps on.
With the DRBIII read the Headlamp Switch voltage.
Does the DRBIII display Headlamp Switch voltage between 1.4 and 1.8 volts?
Yes → Go To 2
→ Replace the Headlamp Switch.
No
2 With the DRBIII actuate the Headlamp Relay.
Listen to or touch the Low Beam Relay.
Does the relay click during actuation?
Yes → Go To 3
→ Go To 5
No
3 Remove the Low Beam Relay.
Measure the voltage of the Fused B+ circuit in the Low Beam Relay.
Is the voltage above 10.0 volts?
Yes → Go To 4
→ Replace the Junction Block
No
4 Remove the Low Beam Headlamp Relay from the junction block.
Ensure fuses 10 and 12 are OK and are installed in the junction block.
Connect a jumper wire between the Fused B+ and the Low Beam Relay Output
terminals in the relay connector.
Did the low beam headlamps come on?
Yes → Replace the Low Beam Relay.
→ Repair the open in the Low Beam Relay Output circuit to the
No
POSSIBLE CAUSES
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
headlamps.
Perform BODY VERIFICATION TEST - VER 1.
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APPLICABILITY
All
All
All
All