DTC Troubleshooting: P0615
DTC P0615: Starter Cut Relay Diagnosis Circuit Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0615 Starter Cut Relay Diagnosis Circuit Malfunction
      

1.
Problem verification:

Problem verification
?1.
Press the engine start/stop button to select the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Try to start the engine.

?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0615 Starter Cut Relay Diagnosis Circuit Malfunction
      

Is DTC P0615 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the relay circuit board and the PCM.?
2.
DTC check:

DTC check
?1.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P16F3 Starter Cut Relay 1 Control Circuit Low Voltage
     
P16F4 Starter Cut Relay 2 Control Circuit Low Voltage
     

Is DTC P16F3 and P16F4 indicated?

     
YES
     
     
     
Go to the troubleshooting for DTC P16F3 and P16F4.?
     
NO
     
     
     
Go to step 3.
3.
Determine possible failure area (ST RLY 1 TO 2 line, others):

Determine possible failure area (ST RLY 1 TO 2 line, others)
?1.
Clear the DTC with the HDS.


?2.
Try to start the engine.

Does the engine start?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Go to step 5.
4.
Open wire check (ST RLY 1 TO 2 line):

Open wire check (ST RLY 1 TO 2 line)
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Jump the SCS line with the HDS.


?3.
Disconnect the following connector.

?4.
Connect terminals A and B with a jumper wire.
Terminal A
Relay circuit board connector A (8P) No. 8 (PUR)
Terminal B
Body ground


?5.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
Relay circuit board connector A (8P): disconnected
Relay circuit board connector A (8P) No. 8 (PUR): jumped to body ground
PCM connector A (51P): disconnected
Test circuit
ST RLY 1 TO 2
Test point 1
PCM connector A (51P) No. 47 (PUR)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The ST RLY 1 TO 2 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then do the repair verification.
     
NO
     
     
     
Repair an open in the ST RLY 1 TO 2 wire between the relay circuit board and the PCM (A47), then do the repair verification.
5.
Fuse check:

Fuse check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Check the following fuse.
Fuse
No. B9 (20 A)
Location
Under-dash fuse/relay box

Is the fuse OK?

     
YES
     
     
     
Go to step 6.
     
NO
     
     
     
Repair a short in the wire between the No. B9 (20 A) fuse in the under-dash fuse/relay box and the appropriate initiator. Also replace the No. B9 (20 A) fuse, then do the repair verification.
6.
Open wire check (IG1 ACG line):

Open wire check (IG1 ACG line)
?1.
Disconnect the following connector.

?2.
Connect terminals A and B with a jumper wire.
Terminal A
Relay circuit board connector A (8P) No. 4 (PNK)
Terminal B
Body ground


?3.
Check for continuity between test points 1 and 2.
Test condition
OFF mode
Relay circuit board connector A (8P): disconnected
Relay circuit board connector A (8P) No. 4 (PNK): jumped to body ground
Under-dash fuse/relay box connector F (18P): disconnected
Test circuit
IG1 ACG
Test point 1
Under-dash fuse/relay box connector F (18P) No. 11 (PNK)
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
The IG1 ACG wire is OK. Go to step 7.
     
NO
     
     
     
Repair an open in the IG1 ACG wire between the under-dash fuse/relay box and the relay circuit board, then do the repair verification.
7.
Relay circuit board check:

Relay circuit board check
?1.
Do the relay circuit board test.

Is the relay circuit board OK?

     
YES
     
     
     
Replace the under-dash fuse/relay box (USA and Mexico models), (Canada model), then do the repair verification.
     
NO
     
     
     
Repair verification:

?1.
Press the engine start/stop button to select the OFF mode.

?2.
Reconnect all connectors.

?3.
Exit the SCS mode with the HDS.


?4.
Press the engine start/stop button to select the ON mode.

?5.
Reset the PCM with the HDS.


?6.
Do the PCM idle learn procedure.

?7.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0615 Starter Cut Relay Diagnosis Circuit Malfunction
      


Is DTC P0615 indicated?

     
YES
     
     
     
Check for poor connections or loose terminals at the relay circuit board and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.
     
NO
     
     
     
Troubleshooting is complete. If the PCM was substituted, replace the original PCM. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.?