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DTC U1016, Pcm Class 2 Source Id 10: Testing

  1. If BCM diagnostic system check was performed, go to next step. If BCM diagnostic system check was not performed, go to BCM DIAGNOSTIC SYSTEM CHECK  .
  2. If SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DATA LINE  test has already been performed, go to next step. If SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DATA LINE test has not been performed, go to step 4).
  3. Turn ignition on. Clear DTCs. Wait for 10 seconds and check for DTCs. If DTC U1016 sets again, go to next step. If DTC U1016 does not set again, system is operating properly.
  4. Turn ignition off. Connect scan tool. Turn ignition on. Using scan tool, attempt to establish communication with PCM. If scan tool communicates with PCM, go to next step. If scan tool does not communicate with PCM, go to step 6).
  5. Check for poor connection at PCM 80-pin Blue connector C1 terminal No. 59 (Dark Green wire). PCM is located inside air cleaner assembly. If connection is okay, go to step 7). If connection is not okay, go to step 8).
  6. Ensure splice pack SP205 is seated properly. Splice pack SP205 is located below instrument panel, by right side of steering column. If splice pack SP205 is seated properly, go to step 9). If splice pack SP205 is not seated properly, go to step 10).
  7. Check for poor connection at BCM 24-pin connector C2 terminal B5 (Light Green wire). If connection is okay, go to step 11). If connection is not okay, go to step 12).
  8. Repair poor connection at PCM connector C1 terminal No. 59 (Dark Green wire). Go to step 13).
  9. Using DVOM, check continuity between PCM connector C1 terminal No. 59 (Dark Green wire) and BCM connector C2 terminal B5 (Light Green wire). If continuity exists, problem exists in PCM system. See appropriate TESTS W/O CODES article in ENGINE PERFORMANCE section. If continuity does not exist, go to step 14).
  10. Seat splice pack SP205 properly. Using scan tool, attempt to establish communication with PCM. If scan tool communicates with PCM, system is operating properly. If scan tool does not communicate with PCM, go to step 14).
  11. Check for poor connections at splice pack SP205 terminals "A" (Purple wire), "B" (Dark Green wire) and "M" (Light Green wire). If connections are okay, system is operating properly. If connections are not okay, go to step 15).
  12. Repair poor connection at BCM connector C2 terminal B5 (Light Green wire). Go to next step.
  13. Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Perform BCM DIAGNOSTIC SYSTEM CHECK  .
  14. Using DVOM, check continuity of Dark Green wire(s) between PCM connector C1 terminal No. 59 and splice pack SP205. If continuity exists, go to step 16). If continuity does not exist, go to step 17).
  15. Repair poor connection(s) at splice pack SP205. Go to step 13).
  16. Replace splice pack SP205. Go to step 13).
  17. Repair poor connection or open in Dark Green wire between PCM connector C1 and splice pack SP205. Go to step 13).
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