Fault-Tracing Information

Rear windshield heating is supplied with power via a relay positioned in the integrated relay/fusebox in the engine compartment.

Reasons for the rear windshield heating not working can include:

• Burnt out fuse
• Damaged relay
• Defective switch
• Open-circuit in the signal cable
• Open-circuit in the heating loop.

For information about fuse numbers and the number on the terminal pins, see the appropriate service information.

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  Refer to CHECKING COMPONENTS