RAM 1500 Truck 4WD V8-5.7L VIN D (2005)
7. CHECK FUSE #45
Turn the ignition off.
Using a 12-volt test light connected to ground, check the Horn fuse #45 in the IPM.
Q: Is the fuse open?
YES: Replace the fuse. Check for a short to ground in the Horn Relay Output circuit from the IPM to the horns. Perform BODY
VERIFICATION TEST - VER 1. See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body
Verification Test
NO: Go To 8
8. HORN RELAY OUTPUT
Disconnect a horn connector.
With the DRBIII(R), actuate the Horn Relay.
Using a 12-volt test light connected to ground, check the Horn Relay Output circuit.
Q: Does the test light illuminate brightly?
YES: Go To 9
NO: Go To 10
9. HORN GROUND CIRCUIT OPEN
