TT L4-1.8L Turbo (BEA) (2004)
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Specified value: approx. battery voltage (B+)
If specified value is not obtained:
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Perform following tests, specified by below:
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Check Fuse S10 (in fuse carrier, location 10).
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Check Fuse S134 (110A) in main fuse box/battery.
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Check wiring from Battery + (30) through fuses S134 and S10 to Motronic Engine Control Module (ECM) Power Supply Relay -J271- (under
cover on left bulkhead).
Checking activation
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Switch ignition off.
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Disconnect power supply relay -1- under cover on left bulkhead.
NOTE: To remove protective cover on vehicles with relay carrier on bulkhead, disconnect and lower. If necessary, disconnect connector from mass air
flow sensor.