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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Start Stop Unit >> Security Indicator Light: 11, DTC B10D9-87; P1260-00; Coil Antenna (Built Into Push Button Start) Error >> Diagnostic Procedure

Diagnostic Procedure

DTC B10D9-87; P1260-00; COIL ANTENNA (BUILT INTO PUSH BUTTON START) ERROR DIAGNOSTIC PROCEDURE

Step Inspection Action
1 INSPECT PUSH BUTTON START CONNECTOR CONDITION
  • Switch the ignition off.
  • Disconnect the negative battery terminal negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  • Disconnect the push button start 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.
2 INSPECT START STOP UNIT CONNECTOR CONDITION
  • Disconnect the start stop unit 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.
3 INSPECT COIL ANTENNA CIRCUIT FOR SHORT TO GROUND
  • Verify that the push button start and start stop unit connectors are disconnected.
  • Inspect for continuity between the following terminals (wiring harness-side) and body ground:
    • Push button start terminal A
      • Push button start terminal B
  • Is there continuity?
Yes Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
  • Start stop unit terminal 1AC-Push button start terminal A
  • Start stop unit terminal 1AE-Push button start terminal B

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 a short to ground.
  • Repair or replace the malfunctioning part.

If there is no common connector:
  • Repair or replace the wiring harness which has a short to ground.

Go to Step 6.
No Go to the next step.
4 INSPECT COIL ANTENNA CIRCUIT FOR OPEN CIRCUIT
  • Verify that the push button start and start stop unit connectors are disconnected.
  • Inspect for continuity between the following terminals (wiring harness-side):
    • Start stop unit terminal 1AC-Push button start terminal A
      • Start stop unit terminal 1AE-Push button start terminal B
  • 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:
  • Start stop unit terminal 1AC-Push button start terminal A
  • Start stop unit terminal 1AE-Push button start terminal B

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 COIL ANTENNNA DEPENDING ON REPEATABILITY Yes Replace the push button start, then Go to the next step.
(See PUSH BUTTON START 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 [START STOP UNIT] .)
No DTC troubleshooting completed.