P16BF
DTC P16BF: Starter Relay STRLY Circuit malfunctionNOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS and wait 5 seconds.
3. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P16BF indicated?
YES - Go to step 4.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at starter relay 1, starter relay 2, and the PCM.
4. Turn the ignition switch OFF.
5. Jump the SCS line with the HDS.
6. Remove starter relay 1 and starter relay 2.
7. Disconnect PCM connector E (31P).
8. Check for continuity between PCM connector terminal E21 and body ground.
Is there continuity?
YES - Repair short in the wire between the PCM (E21) and starter relay 1 or starter relay 2, then go to step 9.
NO - Go to step 14.
9. Reconnect all connectors.
10. Turn the ignition switch ON (II).
11. Reset the PCM with the HDS.
12. Do the PCM idle learn procedure.
13. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P16BF is indicated, check for poor connections or loose terminals at starter relay 1, starter relay 2, and the PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - Troubleshooting is complete.
14. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
15. Check for Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC P16BF is indicated, check for poor connections or loose terminals at starter relay 1, starter relay 2, and the PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM.