LEMON Manuals: Even more car manuals for everyone
Home >> Volvo >> 2013 >> XC90 Base, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Accessory Electronic Module (AEM) And Central Electronic Module (CEM) - Diagnostic Trouble Codes - 2 Of 2 >> CEM-8A08: Extra Lamp Relay. Signal Too High. Intermittent Fault (2003-2004) >> Signal Too High/Signal Missing. Intermittent Fault >> Checking The Wire And Relay

Checking The Wire And Relay

Check the wire between control unit 6C and relay 2/64 1 for an intermittent short circuit to voltage supply as described in, see SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS , contact resistance and oxidation as described in CONTACT RESISTANCE AND OXIDATION and a loose connection as described in LOOSE CONNECTIONS (TERMINALS) .

Also check the same connectors for an intermittent short circuit to voltage supply as described in, see SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS or for contact resistance and oxidation as described in CONTACT RESISTANCE AND OXIDATION and for a loose connection as described in LOOSE CONNECTIONS (TERMINALS) .

Check that relay 2/64 is installed correctly.

Do the necessary corrective action.

Additional information: 

Fig 1: Breakout Box
GLL100304Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Voltage Display
GLL101041Courtesy of VOLVO CARS CORPORATION