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2014 - Mazda6 - Body and Accessories

DTC P0615:13 [START STOP UNIT]



Description

Starter relay circuit malfunction

Detection condition

  • Start stop unit detects an open circuit in the starter relay circuit for 0.075 s or more with the ignition switched off.

Fail-safe function

Not applicable

Possible cause

  • Disconnect the start stop unit connector with the battery cables connected.

  • Starter relay malfunction

  • Start stop unit connector or terminal malfunction

  • Open circuit in wiring harness between the following terminals:

    • Starter relay terminal E—Start stop unit terminal 1D

    • Starter relay terminal A—Start stop unit terminal 2V

  • Start stop unit malfunction


Diagnostic Procedure

Step

Inspection

Action

1

INSPECT STARTER RELAY

Yes

Go to the next step.

No

Replace the starter relay, then go to Step 4.

(See RELAY LOCATION.)

2

INSPECT START STOP UNIT CONNECTOR
  • 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 4.

3

INSPECT FOR OPEN CIRCUIT IN STARTER RELAY CIRCUIT
  • Verify that the starter relay is removed.

  • Verify that the start stop unit connector is disconnected.

  • Inspect for continuity between the following terminals (wiring harness-side):

    • Starter relay terminal E—Start stop unit terminal 1D

    • Starter relay terminal A—Start stop unit terminal 2V

  • 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:

  • Starter relay terminal E—Start stop unit terminal 1D

  • Starter relay terminal A—Start stop unit terminal 2V

    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 the next step.

4

VERIFY THAT REPAIRS HAVE BEEN COMPLETED

Yes

Repeat the inspection from Step 1.

Go to the next step.

No

Go to the next step.

5

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.




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