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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 >> DTC P0615-11; Starter Relay Circuit Malfunction >> Diagnostic Procedure

Diagnostic Procedure

DTC P0615-11; STARTER RELAY CIRCUIT MALFUNCTION DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY PCM DTCs Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)] .)
No Go to the next step.
2 INSPECT STARTER RELAY Yes Go to the next step.
No Replace the starter relay, then go to Step 7.
(See RELAY LOCATION .)
3 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 7.
4 INSPECT PCM CONNECTOR CONDITION
  • Disconnect the PCM 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 7.
5 INSPECT STARTER RELAY CIRCUIT FOR SHORT TO GROUND
  • Verify that the starter relay is removed.
  • Verify that the start stop unit and PCM connectors are disconnected.
  • Inspect for continuity between the following terminals (wiring harness-side) and body ground:
    • Start stop unit terminal 1D
      • Start stop unit terminal 2V
  • 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 1D-Starter relay terminal E
  • Start stop unit terminal 1D-PCM terminal 2AZ
  • Start stop unit terminal 2V-Starter relay terminal A

    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 7.

No Go to the next step.
6 VERIFY IF MALFUNCTIONING LOCATION IS PCM DEPENDING ON REPEATABILITY Yes Replace the PCM, then Go to the next step.
(See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
No Go to Step 8.
7 VERIFY THAT REPAIRS HAVE BEEN COMPLETED Yes Repeat the inspection from Step 1.
No Go to the next step.
8 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.