Chrysler 300/300 Touring/300C, Dodge Magnum. Manual - part 454
•
When Monitored:
Continuously
•
Set Condition:
When the Front Control Module does not detect voltage on the Horn Relay Control circuit.
Possible Causes
HORN FUSE
B(+) OPEN
RELAY
POWER DISTRIBUTION CENTER
FRONT CONTROL MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC’s
Operate the Horn Switch several times.
Cycle the ignition from on to off 3 times and leave on.
With the scan tool, read DTC’s.
Does the scan tool display B2338 – HORN CONTROL CIRCUIT
OPEN?
Yes
>> Go To 2
No
>> 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.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
2.
HORN FUSE
Using a 12-volt test light connected to ground, check the Horn fuse.
Does the test light illuminate and was the fuse OK?
No
>> Replace the horn fuse if open and check for a short to ground on the Horn Relay Output circuit or
correct the open B(+) circuit to the fuse.
Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1).
Yes
>> Go To 3
8H - 14
HORN - ELECTRICAL DIAGNOSTICS
LX