ABS AUDI A6 1996 C5 / 2.G ATW Engine Additional Signals Workshop Manual

24-167

Signal for rough terrain recognition,
checking


Note:

When the ABS/EDL control module recognizes
that a wheel is spinning, the ABS/EDL control
module generates the rough terrain signal.
When the Engine Control Module (ECM)
recognizes the rough terrain signal, combustion
misfire recognition is switched off in the Engine
Control Module (ECM).
Only check the rough terrain signal if the
malfunction "18014 (P1606) rough terrain
info/engine torque from ABS cont. mod.
Electrical malfunction in circuit" is stored DTC
memory. It is possible that the malfunction
"Combustion misfire" is also stored in DTC
memory as a side effect and it can be
disregarded.
The wire connection and rough terrain signal
are monitored by the Engine Control Module
(ECM).
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24-168

Test requirement:

Control module coding OK Page 01
-62
.

Test sequence

- Switch ignition off.

- Connect VAG1598/31 test box at wiring harness
to Engine Control Module (ECM), do not connect
ECM Page 24
-19
.

- Check following wire connection for open circuit
and short circuit to Ground (GND) and B+:

Test box
VAG1598/31
Socket
ABS control module (w/EDL)
-J104-
Terminal
74 Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
If no malfunctions are found in wire:

- Replace ABS control module.
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If the malfunction is indicated again after
replacing the ABS control module:

- Replace Engine Control Module (ECM) Page
24
-23

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pair&id=AUDI.B5.FU06.24.5