DTC Troubleshooting: P0616
DTC P0616: Starter Cut Relay Diagnosis Circuit Low Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0616 Starter Cut Relay Diagnosis Circuit Low Voltage
      

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
STARTER CUT RELAY
Less than 2.2
V
    

Do the current condition(s) match the threshold?

     
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 starter cut relay 1, starter cut relay 2, and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
2.
Fuse check:

Fuse check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Check the following fuse.
Fuse
No. B25 (7.5 A)
Location
Under-hood fuse/relay box

Is the fuse OK?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Go to step 5.
3.
Determine possible failure area (START DIAG line, others):

Determine possible failure area (START DIAG line, others)
?1.
Remove the No. B25 (7.5 A) fuse in the under-hood fuse/relay box.

?2.
Turn the vehicle to the ON mode.

?3.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
STARTER CUT RELAY
More than 2.2
V
    

Do the current condition(s) match the threshold?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Go to step 5.
4.
Relay check:

Relay check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Remove starter cut relay 2 (A) from the under-hood fuse/relay box.


?3.
Test starter cut relay 2.

Is the relay OK?

     
YES
     
     
     
Repair a short in the ST RLY 1 TO 2 wire between the No. B25 (7.5 A) fuse in the under-hood fuse/relay box, starter cut relay 1, and starter cut relay 2. If needed, replace the under-hood fuse/relay box.?
     
NO
     
     
     
Replace starter cut relay 2.?
5.
Shorted wire check (START DIAG line):

Shorted wire check (START DIAG line)
?1.
Remove starter cut relay 2 (A) from the under-hood fuse/relay box.


?2.
Jump the SCS line with the HDS.


?3.
Disconnect the following connector.
PCM connector A (51P)

?4.
Measure the resistance between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
No. B25 (7.5 A) fuse: removed
Starter cut relay 2: disconnected
PCM connector A (51P): disconnected
Test point 1
PCM connector A (51P) No. 47
Test point 2
Body ground

Is there 1.0 M? or more?

     
YES
     
     
     
Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If DTC P0615 goes away and the PCM was updated, troubleshooting is complete. If DTC P0615 goes away and the PCM was substituted, replace the original PCM.?
     
NO
     
     
     
Repair a short in the START DIAG wire between No. B25 (7.5 A) fuse in the under-hood fuse/relay box and the PCM (A47).?