DTC Troubleshooting: P16F9
DTC P16F9: PCM Internal Circuit Malfunction (Starter Control Circuit Malfunction)
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P16F9 PCM Internal Circuit Malfunction (Starter Control Circuit Malfunction)
     

1.
Problem verification:

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

?2.
Clear the DTC with the HDS, and wait 5 seconds.


?3.
Start the engine.

?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P16F9 PCM Internal Circuit Malfunction (Starter Control Circuit Malfunction)
     

Is DTC P16F9 indicated?

     
YES
     
     
     
The failure is duplicated. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If DTC P16F9 goes away and the PCM was updated, troubleshooting is complete. If DTC P16F9 goes away and the PCM was substituted, replace the original PCM.?
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the PCM.?