Pinpoint Test F: DTC C1095 - Abs Hydraulic Pump Motor Circuit Failure

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: The Flex Probe Kit must be used for all test connections. Use of standard multimeter probes may damage wiring terminals

F1 CHECK THE ABS PUMP MOTOR
- Key in ON position.
- Is the ABS pump motor running all the time?
Yes : GO to F5.

No : GO to F2.
F2 CHECK THE PUMP MOTOR ACTIVE COMMAND
- Key in OFF position.
- Connect the scan tool.
- Key in ON position.
- Enter the following diagnostic mode on the scan tool: ABS Module Active Command.
- Trigger the ABS module pump motor ON active command.
- Does the ABS pump motor run for approximately 3 seconds?
Yes : TRIGGER the ABS module pump motor OFF active command. CLEAR the DTCs.

CHECK the yellow ABS warning indicator while driving the vehicle (brakes must not be applied) above 20 km/h (12 mph). If the yellow ABS warning indicator illuminates, RETRIEVE the DTCs.

If DTC C1095 is retrieved, GO to F5.

If a different DTC is retrieved, refer to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .

If the yellow ABS warning indicator does not illuminate, the system is OK.

No : TRIGGER the ABS module pump motor OFF active command. GO to F3.
F3 CHECK THE VOLTAGE SUPPLY TO THE ABS MODULE
- Key in OFF position.
- Disconnect: ABS Module C135.
- Key in ON position.
- Measure the voltage between ABS module C135-1, circuit SBB36 (GN/RD), harness side and ground.
- Is the voltage greater than 10 volts?
Yes : GO to F4.

No : VERIFY BJB fuse 36 (40A) is OK. If OK, REPAIR circuit SBB36 (GN/RD) for an open. CLEAR the DTCs. REPEAT the self-test.
F4 CHECK THE ABS MODULE GROUND FOR AN OPEN
- Measure the resistance between ABS module C135-16, circuit GD123 (BK/GY), harness side and ground.
- Is the resistance less than 5 ohms?
Yes : GO to F5.

No : REPAIR circuit GD123 (BK/GY) for an open. CLEAR the DTCs. REPEAT the self-test.
F5 CHECK FOR CORRECT ABS MODULE OPERATION
- Disconnect the ABS module connector.
- Check for:
  - Corrosion.
  - Pushed-out pins.
  - Spread terminals.
- Connect the ABS module connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . CLEAR the DTCs. REPEAT the self-test.

No : 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.