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*HORNS INOPERATIVE (CONTINUED) 9. HORN GROUND CIRCUIT OPEN Turn the ignition off. Disconnect the Horn connector. Using a 12-volt test light connected to 12-volts, check the Ground cir- Does the test light illuminate brightly? Yes >> Replace the Horns. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES/ FRONT CONTROL MODULE - DIAGNOSIS AND TEST- No >> Repair the Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1. 10. HORN RELAY OUTPUT CIRCUIT OPEN Gain access to the IPM C1 connector. Using a 12-volt test light connected to ground, back probe the Horn Turn the ignition on. With the DRBIII T , the actuate the horn relay. Does the test light illuminate brightly? Yes >> Repair the Horn Relay Output circuit for an open. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 ELECTRICAL/ELECTRONIC CONTROL MODULES/ FRONT CONTROL MODULE - DIAGNOSIS AND TEST- No >> Go To 11 8H - 16 HORN SYSTEM - ELECRICAL DIAGNOSTICS DR/DH |