Checking the power supply and ground at the rear control module
Check the voltage to ground at rear control module terminal #B26 (#E6). The voltage must be at least battery voltage minus 3 V.
Check the control module connector. Check for contact resistance and oxidation. Check for loose connections. Check for damage carefully.
Check the wiring between rear control module terminal #B21 (#E1) and the ground terminal for an open-circuit according to Open-circuit, permanent faults .
Remedy as necessary.
Other information:
- To access the rear control module connector, see Integrated relay/fuse box cargo compartment/rear electronic module, replacing
- To connect the breakout box, see Connecting the breakout box
- See Checking wiring and terminals. Permanent fault
- See Checking wiring and terminals. Intermittent faults .
- Continue
Refer to Verification