Checking components and wiring

Check the signal cable between control module terminal #B4 (#4) and sun sensor terminal #1 (#21). Check for an open-circuit. Check for a short-circuit to supply voltage.

Check the ground lead between control module terminal #B5 (#5) and sun sensor terminal #5 (#25). Check for an open-circuit. Check for a short-circuit to supply voltage.

Replace the sun sensor if no fault is found in the wiring.

Remedy as necessary.

Other information: 

• To access or replace the control module, see Dashboard environment panel (including climate control module (CCM)), replacing
• To connect the breakout box, see Connecting the breakout box
• To access or replace the sun sensor, see Sun sensor / alarm LED, replacing
• For other values, see Signal specification
• See Checking wiring and terminals .

Fig 1: Electronic Throttle Module (ETM) Connector Terminal Identification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

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  Refer to Verification