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Horn System - Electrical Diagnostics: Overview Chrysler Crossfire I

Horns 5 illustrations ~344 words

Scheme 1

Scheme 1: *HORNS INOPERATIVE
Scheme 1: *HORNS INOPERATIVE
POSSIBLE CAUSES
HORN SWITCH CIRCUIT OPEN
RELAY CONTROL MODULE
GROUND CIRCUIT OPEN
HORN(S)

For a complete Horn Circuit Diagram, (Refer to ELECTRICAL/HORN - SCHEMATICS AND DIAGRAMS) .

Scheme 2

Scheme 2: Diagnostic Test
Scheme 2: Diagnostic Test

Scheme 3

Scheme 3
Scheme 3

Scheme 4

Scheme 4
Scheme 4

Scheme 5

Scheme 5
Scheme 5
  1. 1) TEST THE HORNS NOTE: Inspect the Horn Fuse (F6) located in the Relay Control Module. If the fuse is open, repair the cause of the open fuse before continuing. Turn the ignition off. Disconnect the Relay Control Module connector "E". NOTE: Check connectors - Clean/repair as necessary. Connect a fused jumper wire from cavity 1 of the Relay Control Module connector "E" to B(+). Did the Horns sound? Yes Go to step 4) . No Go to step 2) .
  2. 2) MEASURE THE HORN CIRCUIT RESISTANCE Disconnect the left Horn harness connector (Horn No.2). NOTE: Check connectors - Clean/repair as necessary. Measure the resistance between cavity 1 of the Relay Control Module harness connector "E" and the left Horn harness connector (Horn No.2). Is the resistance below 5.0 ohms? Yes Go to step 3) . No Repair the Horn circuit for an open. Perform «BODY VERIFICATION TEST»(ref-250666-S04662804002007031500000) .
  3. 3) MEASURE THE HORN GROUND CIRCUIT RESISTANCE Disconnect the Ground circuit harness connector at the Horn. NOTE: Check connectors - Clean/repair as necessary. Measure the resistance of the Ground circuit between the Horn harness connector and ground. Is the resistance below 5.0 ohms? Yes Replace the Horn(s). «(Refer to ELECTRICAL/HORN/HORN - REMOVAL)»(ref-250667-S41243111992007031500000) . Perform «BODY VERIFICATION TEST»(ref-250666-S04662804002007031500000) . No Repair the Horn Ground circuit for an open. Perform «BODY VERIFICATION TEST»(ref-250666-S04662804002007031500000) .
  4. 4) MEASURE THE HORN SWITCH CIRCUIT RESISTANCE Disconnect the Relay Control Module harness connector "D". NOTE: Check connectors - Clean/repair as necessary. Measure the resistance of the Horn Switch circuit between cavity 1 of the Relay Control Module connector "D" and ground. Press the horn pad while observing the meter. Is the resistance below 5.0 ohms when the horn is pressed? Yes Replace the Relay Control Module. «(Refer to ELECTRICAL/POWER DISTRIBUTION/RELAY - REMOVAL)»(ref-250668-S34794958002007031500000) . Perform «BODY VERIFICATION TEST»(ref-250666-S04662804002007031500000) . No Repair the Horn Switch circuit for an open. Perform «BODY VERIFICATION TEST»(ref-250666-S04662804002007031500000) .

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