1996 AUDI A4 light

24-137

Electronic Power Control (EPC) warning
lamp -K132-, checking


Note:
The fault light for power accelerator activation -
K132- is also called the EPC warning lamp.

Special Tools and Equipment

VAG1594A

VAG1598/31
Pa
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gine
power control
(E-Gas
), checkin
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11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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24-138

Function test of warning lamp

- Switch ignition on.


Engine Control Module (ECM) switches EPC
lamp on.

- Start engine.

Shortly after engine is started, the EPC
warning lamp will go out if there are not
malfunctions stored in DTC memory that
relate to the E-gas system

A- Fault light for power accelerator activation
-K132- does not light up

- Connect VAG1598/31 test box at wiring harness
to ECM, do not connect ECM Page 24
-17
.

- Bridge sockets 1 and 48 of test box.

- Switch ignition on.


Warning lamp must light up.
If warning lamp does not light up:
Pa
ge 6 of 41 Electronic en
gine
power control
(E-Gas
), checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.24.5

24-140

B- Fault light for power accelerator activation
-K132- lights up constantly

- Check DTC memory of Engine Control Module
(ECM).
If no DTCs are stored:

- Connect VAG1598/31 test box at wiring harness
to ECM, do not connect ECM Page 24
-17
.

- Remove instrument cluster:

Repair Manual, Electrical Equipment, Repair
Group 90, Instrument cluster, removing and installing


- Check the following wire connection for short
circuit to Ground (GND):

Test box
VAG1598/31
Socket
Instrument cluster

Terminal
48 Electrical Wiring Diagrams,
Troubleshooting & Component
Pa
ge 9 of 41 Electronic en
gine
power control
(E-Gas
), checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.24.5