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3. (X21)/(X22) HORN CONTROL OUTPUT CIRCUIT OPEN NOTE: Cavity 8 at the C11 TIPM harness connector is for export Measure the resistance of the (X21)/(X22) Horn Control Output circuit Is the resistance below 5.0 ohms? Yes >> Go To 4 No >> Repair the (X21)/(X22) Horn Control Output circuit for an open. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 4. CHECKING HORN OPERATION Turn the ignition off. Disconnect the horn(s) connector(s) if not disconnected. Momentarily jumper 12-volts to the horn(s). Did the horn(s) operate properly? Yes >> Go To 6 No >> Go To 5 5. CASE GROUND CIRCUIT OPEN Using a 12-volt test light connected to 12-volts, check for a good case ground at the horn(s) case. Does the test light illuminate brightly? Yes >> Replace the Horn(s) as necessary. Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- No >> Repair the open or excessive resistance at the horn(s) case ground. Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON- PM HORN SYSTEM - ELECTRICAL DIAGNOSTICS 8H - 11 |