DTC P0615:13 [START STOP UNIT]

id0902p6022200

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
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Remove the starter relay.
•  Inspect the starter relay.
•  Is the starter relay normal?
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 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 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
•  Always reconnect all disconnected connectors.
•  Reconnect the negative battery cable.
•  Clear the DTC for the start stop unit using the M-MDS.
•  Switch the ignition off and wait for 1 s or more.
•  Retrieve the start stop unit DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the start stop unit.
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.