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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 85 (On-Board Diagnostics [Electric Parking Brake]) >> DTC C2006-07: Mechanical Problem Of Electric Parking Brake Motor Gear Unit (LH) >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
Step Inspection Action
1 VERIFY OTHER ELECTRIC PARKING BRAKE CONTROL MODULE DTCs 
  • Clear the DTC for the electric parking brake control module using the M-MDS.

    (See CLEARING DTC [ELECTRIC PARKING BRAKE] .)

  • Perform the following procedure 3 times or more  .
    • Pull up the electric parking brake switch to operate the electric parking brake.
    • Press down the electric parking brake switch to release the electric parking brake.
  • Retrieve the electric parking brake control module DTCs using the M-MDS.

    (See DTC INSPECTION [ELECTRIC PARKING BRAKE] .)

  • Are any DTCs other than DTC C2006:07 displayed?
 Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [ELECTRIC PARKING BRAKE] .)
No Go to the next step.
2 INSPECT ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (LH) CONNECTOR CONDITION 
 Yes Go to the next step.
No Repair or replace the connector, then go to Step 6.
3 INSPECT ELECTRIC PARKING BRAKE CONTROL MODULE CONNECTOR CONDITION 
  • Disconnect the electric parking brake control module connector.
  • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
  • Is the connector normal?
 Yes Go to the next step.
No Repair or replace the connector, then go to Step 6.
4 INSPECT ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (LH) CIRCUIT FOR OPEN CIRCUIT 
  • Verify that the electric parking brake motor gear unit (LH) and electric parking brake control module connectors are disconnected.
  • Inspect for continuity between the following terminals (wiring harness-side):
    • Electric parking brake motor gear unit (LH) terminal A-Electric parking brake control module terminal 1U
    • Electric parking brake motor gear unit (LH) terminal B-Electric parking brake control module terminal 1Z
  • Is there continuity?
 Yes Go to the next step.
No Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
  • Electric parking brake motor gear unit (LH) terminal A-Electric parking brake control module terminal 1U
  • Electric parking brake motor gear unit (LH) terminal B-Electric parking brake control module terminal 1Z

If there is a common connector: 

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
  • Repair or replace the malfunctioning part.

If there is no common connector: 

  • Repair or replace the wiring harness which has an open circuit.

Go to Step 6.
5 VERIFY IF MALFUNCTIONING LOCATION IS ELECTRIC PARKING BRAKE MOTOR GEAR UNIT (LH) DEPENDING ON REPEATABILITY 
 Yes Replace the electric parking brake motor gear unit (RH), then go to the next step.
(See ELECTRIC PARKING BRAKE MOTOR GEAR UNIT REMOVAL/INSTALLATION .)
No Go to Step 7.
6 VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
 Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
7 VERIFY IF OTHER DTCs DISPLAYED 
  • Are any other DTCs displayed?
 Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [ELECTRIC PARKING BRAKE] .)
No DTC troubleshooting completed.
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