Audi A3 1997 - Page 235

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- Open circuit in wiring - Open circuit in wiring/terminal 56
between lighting switch -E1 and
headlight range control unit -J431
- Use current flow diagram to per‐
form fault-finding
01534
L headlight range ctrl posit. motor -V48
- Open circuit in wiring/short to earth
- Short to positive
- Open circuit in wiring or short to
positive/earth between -V48 and
control unit -J431
- Use current flow diagram to per‐
form fault-finding
- -V48 defective - Replace -V48
Display on VAS 5051 Possible cause of trouble Fault remedy
01535
R headlight range ctrl posit. motor -V49
- Open circuit in wiring/short to earth
- Short to positive
- Open circuit in wiring or short to
positive/earth between -V49 and
control unit -J431
- Use current flow diagram to per‐
form fault-finding
- -V49 defective - Replace -V49
01537
Sender for veh. level/supp. volt.
- Short to positive
- Open circuit/short to earth
- Open circuit in wiring or short to
positive/earth between control
unit and vehicle level sender
- Use current flow diagram to per‐
form fault-finding
Display on VAS 5051 Possible cause of trouble Fault remedy
01539
Headlights not set - Basic setting 2 not performed - Perform full basic setting
=> Page 231
- Vehicle level sender outside ad‐
justment range
- Replace holder for vehicle level
sender
01577
Switch-off due to excess temperature - Excess temperature in electronics
of headlight range control unit
(headlight range control motor/
headlight mechanical system stiff)
- Replace headlight range control
motor/headlight
65535
Control unit defective - Headlight range control unit -J431
defective
- Replace control unit
9.6 - Final control diagnosis
Notes:
◆ Final control diagnosis can only be performed with engine stopped and ignition switched on.
◆ If final control diagnosis detects a fault, locate and eliminate cause of problem.
Audi A3 1997 ➤
Electrical system Self-diagnosis - Edition 02.2002
9.5 - Fault table 229