B0608 BCM Power Moding Error

DTC B0608 BCM Power Moding Error:

DTC B0608 BCM Power Moding Error (Part 1 Of 3):

DTC B0608 BCM Power Moding Error (Part 2 Of 3):

DTC B0608 BCM Power Moding Error (Part 3 Of 3):

CIRCUIT DESCRIPTION
The Body Control Module (BCM) receives three voltage inputs. The BCM receives voltage from the IGN 0 fuse through circuit 1500 at all times except when the ignition switch is in the LOCK position. The BCM receives voltage from the PCM-BCM fuse through circuit 439 when the ignition switch is in the RUN, Bulb Test, and START positions. The BCM receives voltage from the CRANK SIGNAL fuse through circuit 806 when the ignition switch is in the START position.

CONDITIONS FOR SETTING THE DTC
The BCM sets DTC B0608 when detecting any of these conditions for more than 0.3 seconds:
^ Voltage in circuit 439 is high and voltage in circuit 1500 is low.
^ Voltage in circuit 806 is high and voltage in circuit 1500 is low.
^ Voltage in circuit 806 is high and voltage in circuit 439 is low.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B0608 in memory.

CONDITIONS FOR CLEARING THE DTC
^ The BCM no longer detects an open or short to B+ in circuits 439, 806, or 1500.
^ A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
^ Using a scan tool.

DIAGNOSTIC AIDS
^ The following conditions may cause an intermittent malfunction to occur:
- An intermittent open or short to B+ in circuit 439, 806 or 1500.
- Poor connections at the BCM, or the fuse block.
- The BCM is always detecting B+ in circuits 439, 806 and 1500.
- The BCM is never detecting B+ in circuits 439, 806 and 1500.
^ DTC P1626 will set in the Powertrain Control Module (PCM) when the ignition switch is in the RUN position with the BCM disconnected. When BCM diagnostics and repairs are completed, refer to the Engine Controls for additional information on PCM related DTCs. Powertrain Management

TEST DESCRIPTION
Numbers below refer to the step numbers on the diagnostic table.
2. Checks for a short to ground in circuit 806.
4. Checks for a short to ground in circuit 1500.
6. Checks for a short to B+ in circuit 439.
7. Checks for an open in circuit 439.
8. Checks for a short to B+ in circuit 806.
9. Checks for an open in circuit 806.
10. Checks for a short to B+ in circuit 1500.
11. Checks for an open in circuit 1500.
12. Determines whether the malfunction is intermittent or the BCM is faulty.