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- Switch ignition off.
- Pull off rubber seal of plenum chamber cover in direction of arrow.
- Remove cover -1- toward front.
- Remove Heater Core E-box cover (arrows).
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- Using a screwdriver, carefully pry off retaining bracket (arrow).
Note:
Adaptation values are erased when connector is disconnected from the
Engine Control Module (ECM), DTC memory content remains intact. - Disengage connector catches (arrows) and disconnect harness
connectors -1- and -2- from control module.
- Remove Engine Control Module (ECM).
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Installing
Installation is reverse of removal, noting the
following:
Note:
Important note:
After installing new Engine Control Module
(ECM), the following work steps must be
performed:
- Check DTC memory and erase it if necessary
Page 01
-16
.
- Perform adaptation of the Throttle Valve Control
Module -J338- Page 24
-121
.
- Observe notes for coding new Engine Control
Module (ECM) Page 01
-62
.
- For vehicles with cruise control (discernable at
steering column), switch this free in ECM:
Repair Manual, Electrical Equipment On
Board Diagnostic (OBD), Repair Group 01; OBD for cruise control system
- For vehicles with automatic transmission, the
kick down function must be adapted Page 24
-
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139
.
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- Adapt immobilizer to Engine Control Module
(ECM):
Repair Manual, Electrical Equipment On
Board Diagnostic (OBD), Repair Group 01; OBD of immobilizer
- variable code; adaptation after
replacing Engine Control Module (ECM)
- Generate readiness code Page 01
-73
.
Note:
During the first adaptation phase, it is possible
that idle will be rough and vehicle may shake
lightly in drive mode.
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Idle speed (RPM), checking
Special tools and equipment
or
Test requirements:
VAS5051 with VAG5051/1VAG1551 with VAG1551/3AExhaust system free of leaks. Coolant Temperature at least 80 C. Electrical consumers switched off (radiator fan must NOT run during
test). A/C switched off. No pressure gauge connected. Vehicles with automatic transmission Selector lever in P or N.
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Note:
Idle speed cannot be adjusted.
Idle speed is checked during basic setting of
the engine.
During basic setting, the Evaporative Emission
(EVAP) canister purge regulator valve (EVAP
valve -N80-) is closed and the A/C compressor
is switched off
Test sequence
- Check DTC memory Page 01
-16
. There must
not be any DTCs stored, repair malfunctions if
necessary, erase DTC memory, switch engine
off and start again, road test vehicle and check
DTC memory again as a control measure.
- Let engine continue to run at idle.
WARNING!
The electric fan for the radiator must not be
running. Rapid data transfer
HELP
Select function XX
When indicated on display
-
Press buttons -0- and -4- to select "Initiate basic setting" and press -Q-
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Page 32 of 81
button to confirm input.
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