Checking the power supply and ground on the Accessory Electronic Module (AEM)
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Check the power supply to the Accessory Electronic Module (AEM). Check between the breakout box terminals for the power supply (#52) and ground (#51). 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 the Accessory Electronic Module (AEM) (breakout box for ground terminal #51) and ground. Check for an open-circuit.
Remedy as necessary.
Other information:
- To connect the breakout box, see Replacing the accessory electronic module
- To access or replace the Accessory Electronic Module (AEM) and connector, see Replacing the accessory electronic module
- For information about signals, see Signal description. Accessory electronic module (AEM)
- To fault-trace wiring and terminals see Contents
- For information about the fuses and ground terminals, see the appropriate wiring diagram.
- Continue
Refer to Verification