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DTC Troubleshooting: P15BF

DTC P16BF:
 Starter Relay Circuit Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS and wait 5 seconds.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P16BF indicated?
YES -
Go to Step 4 .
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the starter cut relay and the ECM.■
  1. Turn the ignition switch to LOCK (0).
  1. Jump the SCS line with the HDS.
  1. Remove starter relay 1.
  1. Disconnect ECM connector A (49P).
  1. Check for continuity between ECM connector terminal A13 and body ground.
Is there continuity?
YES -
Repair short in the wire between the ECM (A13) and starter relay 1, then go to Step 9 .
NO -
Go to Step 14 .
  1. Reconnect all connectors.
  1. Turn the ignition switch to ON (II).
  1. Reset the ECM with the HDS.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P16BF indicated?
YES -
Check for poor connections or loose terminals at starter relay 1 and the ECM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■
  1. Reconnect all connectors.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P16BF indicated?
YES -
Check for poor connections or loose terminals at the starter cut relay and the ECM. If the ECM was updated, substitute a known-good ECM, then recheck. If the ECM was substituted, go to Step 1 .
NO -
If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■