wiring diagram AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual

[x] Cancel search | Manufacturer: AUDI, Model Year: 1998, Model line: A4, Model: AUDI A4 1998 B5 / 1.G
Pages: 37, PDF Size: 0.15 MB
AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual A4 1998 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1005/w960_1005-0.png AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual
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Page 3 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-89 If display value does not change: - Switch ignition OFF and connect VAG 1598/19 test box to ECM harness connector page 01 - 255 . - Connect VAG 1527B voltage tester b

Page 8 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-92 If the specified values are obtained: - Press button. - Select "End Output" function 06. - Press -Q- button to confirm input. If display value changes:

Page 12 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-94 Engine speed (RPM) signal, checking Notes: The RPM signal is routed from the ECM to various electronic systems (e.g. automatic transmission, ABS, etc.). The RPM signal i

Page 13 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual tester: - Check wiring between ECM terminal C10 and instrument cluster or A/C control module using wiring diagram. If wiring is OK: - Replace ECM page 01 -265 . Pa ge 13 o

Page 16 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-96 - Switch Fluke 83 multimeter to voltage measurement range and connect between signal wire (trip computer 20-pin connector) and Ground (GND), using wiring diagram. - Start engi

Page 17 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual If wiring OK and the specified value is not obtained: - Check wiring between ECM terminal C12 and black 20-pin trip computer connector, using wiring diagram. - Replace ECM page 01 -265 . Pa ge

Page 20 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual vehicle speed sensor, using wiring diagram. If wiring is OK, replace vehicle speed sensor. If voltage tester does not light up (become brighter) or flash, replace ECM page 01 -265 . - Fi

Page 24 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual If wiring is OK: Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 01; Electrical test. ECM terminal 11B and multi-function switch, using wiring diagram. - Check multi-function s

Page 27 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-102 Read measuring value block 4 1 2 3 4 Indicated on display; note display field 4 Notes: Due to its short signal duration, shifting cannot always be observed on the VAG 1551 scan tool

Page 31 of 37

AUDI A4 1998 B5 / 1.G AFC Engine Auxiliary Input Signals Checking Workshop Manual 24-106 - Switch ignition ON. - Using VAG 1551 scan tool, select "Read Measuring Value Block" function 08, display group 027, display field 1 page 01 -249 . Read measuring value bl
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