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Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> Body & Frame >> Seats >> Power Seat Module (PSM) Diagnostic Trouble Codes >> PSM-0031: Front-Rear Adjustment, Motor 1 (M1-). Signal Missing. Permanent Fault (1999-2006) >> Signal missing. Permanent fault >> Checking cable >> Checking cable
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Checking cable

Fig 1: Identifying Ignition ON
GLL101051Courtesy of VOLVO CARS OF NORTH AMERICA.

HINT: The resistance between #1E and #2E must be approximately 0 Ω. 

Check the cable between the power seat module (PSM) #2E and the motor. Check for an open-circuit. See Open-circuit, permanent faults .

Remedy as necessary.

If no fault is found, try replacing the motor.

Other information: 

Fig 2: Identifying Breakout Box
GLL100304Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 4: Identifying Audio Control Module (AUM) / External Amplifier To Loudspeakers And Gray Connector
GLL104014Courtesy of VOLVO CARS OF NORTH AMERICA.