DTC Troubleshooting: P0616
DTC P0616: Starter Cut Relay Diagnosis Circuit Low Voltage
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
P0616 Starter Cut Relay Diagnosis Circuit Low Voltage
      

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.
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 the relay circuit board and the PCM.?
2.
Relay circuit board check:

Relay circuit board check
?1.
Press the engine start/stop button to select the OFF mode.

?2.
Do the relay circuit board test.

Is the relay circuit board OK?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
3.
Shorted wire check (ST RLY 1 TO 2 line):

Shorted wire check (ST RLY 1 TO 2 line)
?1.
Jump the SCS line with the HDS.


?2.
Disconnect the following connector.

?3.
Measure the resistance between test points 1 and 2.
Test condition
OFF mode
Relay circuit board connector A (8P): disconnected
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 1.0 M? or more?

     
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 a short in the ST RLY 1 TO 2 wire between the relay circuit board and the PCM (A47), then do the repair verification.
Repair verification:

?1.
Reconnect all connectors.

?2.
Exit the SCS mode with the HDS.


?3.
Press the engine start/stop button to select the ON mode.

?4.
Reset the PCM with the HDS.


?5.
Do the PCM idle learn procedure.

?6.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0616 Starter Cut Relay Diagnosis Circuit Low Voltage
     


Is DTC P0616 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.?