Question about 2007 Mercury Mariner
Could have DTC"S
B1217 Horn Relay Coil Circuit Failure SJB REFER to Section 413-06 . B1218 Horn Relay Coil Circuit Short to Battery SJB REFER to Section 413-06 .
If the relay had a problem a DTC would be set .
PINPOINT TEST B: THE HORN IS ALWAYS ON Test Step Result / Action to Take B1 CHECK THE HORN SWITCH
GO to B2 .
INSTALL a new driver air bag. REFER to Section 501-20B . TEST the system for normal operation. B2 CHECK THE HORN SWITCH HARNESS FOR A SHORT TO GROUND
GO to B3 .
REPAIR or INSTALL a new horn switch harness as necessary. INSTALL the driver air bag. REFER to Section 501-20B . TEST the system for normal operation. B3 CHECK THE CLOCKSPRING
GO to B4 .
INSTALL a new clockspring. REFER to Section 501-20B . TEST the system for normal operation. B4 CHECK CIRCUIT 6 (YE/LG) FOR A SHORT TO GROUND
GO to B5 .
REPAIR the circuit. TEST the system for normal operation. B5 CHECK CIRCUIT 1 (DB) FOR A SHORT TO VOLTAGE
REPAIR the circuit. TEST the system for normal operation.
GO to B6 . B6 CHECK FOR CORRECT SJB OPERATION
INSTALL a new SJB. REFER to Section 419-10 . CLEAR the DTCs. REPEAT the self-test.
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
Posted on Dec 26, 2016
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Posted on Jan 02, 2017
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