audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

With Manufacturer's Scan Tool|Page 5862 > < With Manufacturer's Scan Tool|Page 5860
Page 4
background image

-

Specified value: approx. battery voltage (B+)

If specified value is not obtained:

-

Perform following tests, specified by below:

-

Check Fuse S10 (in fuse carrier, location 10).

-

Check Fuse S134 (110A) in main fuse box/battery.

-

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

-

Switch ignition off.

-

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.

With Manufacturer's Scan Tool|Page 5862 > < With Manufacturer's Scan Tool|Page 5860