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Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brake System And Stability Control >> Diagnosis And Testing >> Anti-Lock Control - Hybrid >> Pinpoint Tests >> Pinpoint Test X: DTCs C101C:01 and 71 >> PINPOINT TEST X: DTCs C101C:01 AND 71

PINPOINT TEST X: DTCs C101C:01 AND 71

  1. X1 VERIFY ALL WIRING CONNECTIONS 
    • Disconnect: Vacuum Pump Motor C1119.
    • Disconnect: ABS Module C135.
    • Disconnect: Vacuum Pump Solid State Relay.
    • Disconnect: Vacuum Pump Mechanical Relay.
    • Using a good light source, inspect each connector terminal for any corrosion.
    • Inspect both connectors for any pushed-out pins. Refer to CONNECTOR REPAIR PROCEDURES for schematic and connector information.
    • Using a suitable mating terminal, check each female terminal for deformed or enlarged contacts by comparing the mating terminal's fit between each of the following pins:
      • C135-15
      • C135-20
      • C135-35
      • C1119-1
      • C1119-2
      • Vacuum pump solid state relay cavities
      • Vacuum pump mechanical relay cavities
    • Refer to CONNECTOR REPAIR PROCEDURES for schematic and connector information.
      Fig 1: Verifying All Wiring Connections
      G06257161Courtesy of FORD MOTOR CO.
    • Is each terminal free of corrosion, pushed-out pins or spread terminals? 
      • Yes:  GO to X2.
      • No:  REPAIR the affected terminal(s). CLEAR the DTCs. REPEAT the self-test.
  2. X2 CHECK THE DTCs FROM THE ABS MODULE SELF-TEST 
    • Connect: Vacuum Pump Motor C1119.
    • Connect: ABS Module C135.
    • Connect: Vacuum Pump Solid State Relay.
    • Connect: Vacuum Pump Mechanical Relay.
    • Review the DTCs retrieved and recorded during Inspection and Verification.
    • Is DTC C101C:01 or C101C:71 present? 
      • Yes:  If DTC C101C:01 is present, GO to  X5.

        If DTC C101C:71 is present, GO to X3.

      • No:  For all other ABS module DTCs, GO to the ABS Module DTC Chart  .
  3. X3 CHECK THE SOLID STATE RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Disconnect: Vacuum Pump Solid State Relay.
    • Measure the resistance between the vacuum pump solid state relay socket 86, circuit CCB30 (GY/VT) and ground.
      Fig 2: Measuring Resistance Between Vacuum Pump Solid State Relay Cavity 86, Circuit CCB30 (GY/VT) And Ground
      G08018984Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  INSTALL a new vacuum pump solid state relay.
      • No:  GO to X4.
  4. X4 ISOLATE THE SOLID STATE RELAY CONTROL CIRCUIT 
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Measure the resistance between the vacuum pump solid state relay socket 86, circuit CCB30 (GY/VT) and ground.
      Fig 3: Measuring Resistance Between Vacuum Pump Solid State Relay Cavity 86, Circuit CCB30 (GY/VT) And Ground
      G08018984Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  GO to  X24.
      • No:  REPAIR circuit CCB30 (GY/VT). CLEAR the DTCs. REPEAT the self-test.
  5. X5 CHECK THE VACUUM PUMP MOTOR 
    • Ignition ON.
    • Is the vacuum pump running all the time? 
      • Yes:  GO to X6.
      • No:  GO to  X11.
  6. X6 ISOLATE THE SOLID STATE RELAY 
    • Disconnect: Vacuum Pump Solid State Relay.
    • Is the vacuum pump running all the time? 
      • Yes:  GO to  X9.
      • No:  GO to X7.
  7. X7 CHECK THE SOLID STATE RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance between the vacuum pump solid state relay cavity 86, circuit CCB30 (GY/VT) and ground.
      Fig 4: Measuring Resistance Between Vacuum Pump Solid State Relay Cavity 86, Circuit CCB30 (GY/VT) And Ground
      G08018984Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  INSTALL a new solid state relay. CLEAR the DTCs. REPEAT the self-test.
      • No:  GO to X8.
  8. X8 ISOLATE THE ABS MODULE 
    • Disconnect: ABS Module C135.
    • Measure the resistance between the vacuum pump solid state relay cavity 86, circuit CCB30 (GY/VT) and ground.
      Fig 5: Measuring Resistance Between Vacuum Pump Solid State Relay Cavity 86, Circuit CCB30 (GY/VT) And Ground
      G08018984Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  GO to  X24.
      • No:  REPAIR circuit CCB30 (GY/VT). CLEAR the DTCs. REPEAT the self-test.
  9. X9 ISOLATE THE VACUUM PUMP MOTOR CONTROL CIRCUIT 
    • Disconnect: BJB Fuse 37 (5A).
    • Is the pump running all the time? 
      • Yes:  REPAIR circuit CCB29 (WH/VT). CLEAR the DTCs. REPEAT the self-test.
      • No:  GO to X10.
  10. X10 CHECK THE ABS MODULE PUMP MOTOR MONITOR CIRCUIT 
    • Connect: BJB Fuse 37 (5A).
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Ignition ON.
    • Is the pump running all the time? 
      • Yes:  REPAIR circuit CBB37 (WH). CLEAR the DTCs. REPEAT the self-test.
      • No:  GO to  X24.
  11. X11 CHECK THE VACUUM PUMP GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Vacuum Pump Motor C1119.
    • Measure the resistance between vacuum pump motor C1119-2, circuit GD121 (BK/YE), harness side and ground.
      Fig 6: Measuring Resistance Between Vacuum Pump C1119-2, Circuit GD121 (BK/YE) And Ground
      G06094588Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
      • Yes:  GO to X12.
      • No:  REPAIR circuit GD121 (BK/YE). CLEAR the DTCs. REPEAT the self-test.
  12. X12 CHECK THE VACUUM PUMP MECHANICAL RELAY INPUT CIRCUIT FOR VOLTAGE 
    • Connect: Vacuum Pump Motor C1119.
    • Measure the voltage between ground and:
      • vacuum pump mechanical relay cavity 3, circuit SBB07 (WH/RD).
      • vacuum pump mechanical relay cavity 2, circuit SBB07 (WH/RD).
        Fig 7: Checking Vacuum Pump Mechanical Relay Input Circuit For Voltage
        G06257167Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
      • Yes:  GO to X13.
      • No:  VERIFY BJB fuse 7 (40A) is OK. If OK, REPAIR circuit SBB07 (WH/RD).

        If not OK, REFER to the Wiring Diagrams information to identify the cause of the circuit short.

        CLEAR the DTCs. REPEAT the self-test.

  13. X13 ISOLATE THE VACUUM PUMP MECHANICAL RELAY 
    • Connect the scan tool.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - ABS Module.
    • Install a fused jumper wire between vacuum pump mechanical relay cavity 3, circuit SBB07 (WH/RD) and cavity 5, circuit CBB07 (GN/BU).
      Fig 8: Isolating Vacuum Pump Mechanical Relay
      G06257168Courtesy of FORD MOTOR CO.
    • Using the scan tool, toggle the vacuum pump (VAC_PMP) active command on.
    • Does the pump motor run? 
      • Yes:  REMOVE the fused jumper wire. GO to X14.
      • No:  GO to  X16.
  14. X14 CHECK THE MECHANICAL RELAY CONTROL CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Measure the resistance between ABS module C135-35, circuit CBB30 (GY/BK), harness side and vacuum pump mechanical relay socket 1, circuit CBB30 (GY/BK).
      Fig 9: Checking Mechanical Relay Control Circuit For Open
      G06257169Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
      • Yes:  GO to X15.
      • No:  REPAIR circuit CBB30 (GY/BK). CLEAR the DTCs. REPEAT the self-test.
  15. X15 CHECK THE MECHANICAL RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND 
    • Measure the resistance between ABS module C135-35, circuit CBB30 (GY/BK), harness side and ground.
      Fig 10: Measuring Resistance Between ABS Module C135-35, Circuit CBB30 (GY/BK) And Ground
      G06257170Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  INSTALL a new vacuum pump mechanical relay. CLEAR the DTCs. REPEAT the self-test.
      • No:  REPAIR circuit CBB30 (GY/BK). CLEAR the DTCs and REPEAT the self-test.
  16. X16 CHECK THE SOLID STATE RELAY INPUT CIRCUIT FOR VOLTAGE 
    • Disconnect: Vacuum Pump Solid State Relay.
    • Measure the voltage between vacuum pump solid state relay cavity 30, circuit CBB07 (GN/BU) and ground.
      Fig 11: Measuring Voltage Between Vacuum Pump Solid State Relay Cavity 30, Circuit CBB07 (GN/BU) And Ground
      G08018993Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
      • Yes:  REMOVE the fused jumper wire. GO to X17.
      • No:  REPAIR circuit CBB07 (GN/BU). CLEAR the DTCs and REPEAT the self-test.
  17. X17 CHECK THE SOLID STATE RELAY CONTROL CIRCUIT FOR AN OPEN CIRCUIT 
    • Disconnect: ABS Module C135.
    • Measure the resistance between the vacuum pump solid state relay cavity 86, circuit CCB30 (GY/VT), and ABS module C135-15, circuit CCB30 (GY/VT), harness side.
      Fig 12: Measuring Resistance Between Vacuum Pump Solid State Relay Cavity 86 And ABS Module C135-15, Circuit CCB30 (GY/VT)
      G06257172Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
      • Yes:  GO to X18.
      • No:  REPAIR circuit CCB30 (GY/VT). CLEAR the DTCs. REPEAT the self-test.
  18. X18 CHECK THE SOLID STATE RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND 
    • Measure the resistance between ABS module C135-15, circuit CCB30 (GY/VT), harness side and ground.
      Fig 13: Measuring Resistance Between ABS Module C135-15, Circuit CCB30 (GY/VT) And Ground
      G06257173Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  GO to X19.
      • No:  REPAIR circuit CCB30 (GY/VT). CLEAR the DTCs and REPEAT the self-test.
  19. X19 CHECK THE VACUUM PUMP SOLID STATE RELAY OUTPUT CIRCUIT FOR A SHORT TO GROUND 
    • Disconnect: Vacuum Pump Motor C1119.
    • Disconnect: BJB Fuse 37 (5A).
    • Measure the resistance between the vacuum pump solid state relay cavity 87, circuit CBB29 (WH/VT), harness side and ground.
      Fig 14: Measuring Resistance Between Vacuum Pump Solid State Relay Cavity 87, Circuit CBB29 (WH/VT) And Ground
      G08018996Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  GO to X20.
      • No:  REPAIR circuit CBB29 (WH/VT). CLEAR the DTCs and REPEAT the self-test.
  20. X20 CHECK THE VACUUM PUMP SOLID STATE RELAY OUTPUT CIRCUIT FOR AN OPEN CIRCUIT 
    • Measure the resistance between the vacuum pump solid state relay cavity 87, circuit CBB29 (WH/VT) and:
      • vacuum pump motor C1119-1, circuit CBB29 (WH/VT), harness side.
      • BJB fuse 37 (5A), circuit CBB29 (WH/VT), input side.
        Fig 15: Checking Vacuum Pump Solid State Relay Output Circuit For Open Circuit
        G06257175Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
      • Yes:  GO to X21.
      • No:  REPAIR circuit CBB29 (WH/VT). CLEAR the DTCs and REPEAT the self-test.
  21. X21 CHECK THE VACUUM PUMP MONITOR CIRCUIT FOR AN OPEN CIRCUIT 
    • Measure the resistance between BJB fuse 37 (5A), circuit CBB37 (WH), input side and ABS module C135-20, circuit CBB37 (WH), harness side.
      Fig 16: Checking Vacuum Pump Monitor Circuit For Open Circuit
      G06257176Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
      • Yes:  GO to X22.
      • No:  REPAIR circuit CBB37 (WH). CLEAR the DTCs and REPEAT the self-test.
  22. X22 CHECK THE VACUUM PUMP MONITOR CIRCUIT FOR A SHORT TO GROUND 
    • Measure the resistance between ABS module C135-20, circuit CBB37 (WH), harness side and ground.
      Fig 17: Measuring Resistance Between ABS Module C135-20, Circuit CBB37 (WH) And Ground
      G08018999Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
      • Yes:  GO to X23.
      • No:  REPAIR circuit CBB37 (WH). CLEAR the DTCs and REPEAT the self-test.
  23. X23 CHECK THE VACUUM PUMP OPERATION 
    • Connect: Vacuum Pump Motor C1119.
    • Connect: Vacuum Pump Motor Solid State Relay.
    • Install a fused jumper wire between vacuum pump mechanical relay cavity 3, circuit SBB07 (WH/RD) and cavity 5, circuit CBB07 (GN/BU).
      Fig 18: Checking Vacuum Pump Operation
      G06257168Courtesy of FORD MOTOR CO.
    • Momentarily  connect a fused jumper wire between ABS module C135-15, circuit CBB30 (GY/BK), harness side and ground.
      Fig 19: Connect A Fused Jumper Wire Between ABS Module C135-15, Circuit CBB30 (GY/BK) And Ground
      G08019001Courtesy of FORD MOTOR CO.
    • Does the pump run when the jumper wire is connected to ground? 
      • Yes:  REMOVE both fused jumper wires. GO to X24.
      • No:  REMOVE the fused jumper wire from the ABS module connector. GO to  X25.
  24. X24 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Disconnect: ABS Module C135.
    • Check the connector for:
      • corrosion.
      • pushed-out pins.
      • spread terminals.
    • Connect: ABS Module C135.
    • Make sure the connector is seated correctly, then 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 - HYBRID  . TEST the system for normal operation.
      • 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.
  25. X25 ISOLATE THE VACUUM PUMP MOTOR 
    • Disconnect: Vacuum Pump Motor Solid State Relay.
      • NOTE: The fused jumper wire on the mechanical relay should still be installed from the previous step.
      Fig 20: Isolating Vacuum Pump Motor
      G06257180Courtesy of FORD MOTOR CO.
    • Momentarily  connect a fused jumper wire between vacuum pump solid state relay cavity 30, circuit CCB29 (WH/VT) and cavity 87, circuit CBB07 (GN/BU).
    • Does the pump run when the jumper wire is connected? 
      • Yes:  INSTALL a new solid state relay. CLEAR the DTCs. REPEAT the self-test.
      • No:  INSTALL a new vacuum pump. REFER to Brake Vacuum Pump in POWER BRAKE ACTUATION . CLEAR the DTCs. REPEAT the self-test.
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