BMW E46 - Diagnosis, Coding, and Memory

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E46 Climate Control
Workshop Hints
Diagnosis
Diagnosis of the E46 IHKR system is carried out using the DISplus or MoDiC. The IHKR is
connected to the diagnostic bus via the K-bus/Kombi connection. The system uses the
E46 test module driven diagnostic concept for troubleshooting faults with the system.
BMW DIS
B
M
W
D
I
S
BMW DIS
B
M
W
D
IS
DSC III
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Control Unit Functions:
Expert mode diagnosis available at
any time during troubleshooting. To
enter: press the Control Unit
Functions button at the lower right
corner of the screen.
The contents are:
• Identification
• Clear Fault Memory
• Read Fault Memory
• Component Activation
• Status Requests
Service Functions:
Provides access to special-
ized test modules used as
post repair procedures. To
enter:
• Function selection
• Service Functions
• Body
• Heater- A/C control
Deactivate transport-lock
function
Test Modules: Faults with the E46 IHKR can be diagnosed using fault or symptom driven test
modules. To begin diagnosis:
• Perform the Short Test
• Select a vehicle symptom from the Symptom Selection page
• Select a test module from the Test Plan page
• Press the Test Schedule button
Test module are written in the E46 Diagnostic Concept.