ABS - With Traction Control

DTC C1215 Part 1 Of 2:

DTC C1215 Part 2 Of 2:

CIRCUIT DESCRIPTION
Ignition voltage is supplied through terminal A1 of the electronic brake control relay. The EBCM/EBTCM then is able to energize the pull-in coil by completing the ground circuit at connector C1 terminal All of the EBCM/EBTCM. The magnetic field created closes the electronic brake control relay contacts and allows battery voltage and current through the electronic brake control relay terminal C1 to be supplied to the EBCM/EBTCM through connector C2 terminal C, which supplies power to the motors and solenoids.

CONDITIONS FOR SETTING THE DTC
DTC C1215 can be set only before the EBCM/EBTCM commands the electronic brake control relay on. This test determines if the electronic brake control relay is energized when it should not be. This malfunction would not allow the electronic brake control relay to remove power to the ABS/ETS system. If a second malfunction were to occur that requires the electronic brake control relay to be turned off, that malfunction cannot be removed if the electronic brake control relay cannot be controlled. The malfunction must be present for three consecutive drive cycles before the DTC is set.

ACTION TAKEN WHEN THE DTC SETS
A malfunction DTC is stored. ABS/ETS is not disabled.

CONDITIONS FOR CLEARING DTC
Condition for DTC is no longer present and the scan tool (CLEAR DTCs) function is used, or 100 drive cycles have passed with no DTC(s) detected.

Diagnostic Aids:
An intermittent malfunction may be caused by a poor connection, rubbed-through wire insulation, or a wire that is broken inside the insulation. The frequency of the malfunction can be checked by using the enhanced diagnostic function of the Scan Tool. Any circuitry that is suspected of causing the intermittent complaint should be thoroughly checked for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wiring connections, or physical damage to the wiring harness.

NOTE: J 39200 test leads must be zeroed prior to making any resistance measurements. Refer to J 39200 user's manual.

After diagnosis is complete, clear the DTCs and test drive the vehicle for three drive cycles to verify that the DTC does not reset. A drive cycle consists of starting the vehicle, driving the vehicle over 16 km/h (10 mph), stopping the vehicle and then turning the ignition to the OFF position.