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DTC B0608: BCM Power MODING Error: 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  under SYSTEM TESTS.
  2. Check CRANK SIGNAL fuse (10-amp), located in instrument panel fuse block. If fuse is blown, go to next step. If fuse is okay, go to step  4 .
  3. Turn ignition off. Replace CRANK SIGNAL fuse. Turn ignition switch to CRANK position momentarily. Check CRANK SIGNAL fuse. If fuse is blown, go to step  13 . If fuse is okay, go to next step.
  4. Check IGN 0 fuse (10-amp), located in instrument panel fuse block. If fuse is blown, go to next step. If fuse is okay, go to step  6 .
  5. Turn ignition off. Replace IGN 0 fuse. Turn ignition switch to CRANK position momentarily. Check IGN 0 fuse. If fuse is blown, go to step  14 . If fuse is okay, go to next step.
  6. Turn ignition off. Using test light, backprobe between BCM Pink 32-pin connector C1 terminal C12 (Pink wire) and ground. See WIRING DIAGRAMS  . See Figure . If test light comes on, go to step  15 . If test light does not come on, go to next step.
  7. Leave test light connected as specified in previous step. While observing test light, turn ignition switch to RUN, then START position. Turn ignition off. If test light comes on when ignition switch is in RUN and START positions, go to next step. If test light does not come on when ignition switch is in RUN and START positions, go to step  16 .
  8. Using test light, backprobe between BCM connector C1 terminal C13 (Purple wire) and ground. While observing test light, turn ignition switch from LOCK to RUN position. If test light does not come on when ignition switch is turned from LOCK to RUN position, go to next step. If test light comes on when ignition switch is turned from LOCK to RUN position, go to step  17 .
  9. Leave test light connected as specified in previous step. While observing test light, turn ignition switch to START position momentarily (engine may start no matter how quickly you can turn the ignition switch). Turn ignition switch to OFF position. If test light comes on when ignition switch is in START position, go to next step. If test light does not come on when ignition switch is in START position, go to step  18 .
  10. Ensure ignition switch is in LOCK position. Using test light, backprobe between BCM connector C1 terminal C3 (Purple wire) and ground. If test light does not come on, go to next step. If test light comes on, go to step  19 .
  11. Leave test light connected as specified in previous step. While observing test light, turn ignition switch to RUN, then START position (engine may start no matter how quickly you can turn the ignition switch). Turn ignition off. If test light comes on when ignition switch is in RUN and START positions, go to next step. If test light does not come on when ignition switch is in RUN and START positions, go to step  20 .
  12. Using scan tool, clear BCM DTCs. See BCM DTC DEFINITIONS  under SELF-DIAGNOSTIC SYSTEM. Turn ignition off. Wait 10 seconds. Turn ignition on. Using scan tool, check for codes. If DTC B0608 is set, go to step  21 . If DTC B0608 is not set, go to step  22 .
  13. Repair short to ground in Purple wire between BCM connector C1 terminal C13 and instrument panel fuse block. Go to step  23 .
  14. Repair short to ground in Purple wire between BCM connector C1 terminal C3 and instrument panel fuse block. Go to step  23 .
  15. Repair short to voltage in Pink wire between BCM connector C1 underhood accessory wiring junction block and instrument panel fuse block. Go to step  23 .
  16. Repair poor connection or open in Pink wire between BCM connector C1 underhood accessory wiring junction block and instrument panel fuse block. Go to step  23 .
  17. Repair short to voltage in Purple wire between BCM connector C1 terminal C13 and instrument panel fuse block. Go to step  23 .
  18. Repair poor connection or open in Purple wire between BCM connector C1 terminal C13 and instrument panel fuse block. Go to step  23 .
  19. Repair short to voltage in Purple wire between BCM connector C1 terminal C3 and instrument panel fuse block. Go to step  23 .
  20. Repair poor connection or open in Purple wire between BCM connector C1 terminal C3 and instrument panel fuse block. Go to step  23 .
  21. Check for poor terminal connections at BCM connector C1 terminals C3, C12 and C13. If terminal connections are okay, replace BCM. See BODY CONTROL MODULE (BCM)  under REMOVAL & INSTALLATION. Reprogram BCM. See NEW BCM SETUP  under PROGRAMMING. Go to step  23 .
  22. System is operating properly at this time. See DIAGNOSTIC AIDS  . After any repairs are made, go to next step.
  23. Turn ignition off. Reinstall all components and connectors. Turn ignition on. Using scan tool, clear DTCs. Check for DTCs. If any DTCs are current, perform BCM DIAGNOSTIC SYSTEM CHECK  under SYSTEM TESTS. If no DTCs are current, system is operating properly.
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