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On Board Diagnostic (OBD) - HVAC Audi A6 C5 рестайлинг

Step-by-step instructions on "On Board Diagnostic (OBD) - HVAC" for Audi A6 C5 рестайлинг (2001–2004). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

51subsections
51articles
308illustrations

A/C system, On Board Diagnostic (OBD)

1 article

Function

1 article

On Board Diagnostic (OBD), technical data

1 article

On Board Diagnostic (OBD), test requirements

1 article

Safety precautions

1 article

Diagnostic Trouble Code (DTC) table

1 article

Output Diagnostic Test Mode (DTM)

1 article

Initiating output DTM

1 article

Idle Air Control (IAC) regulation, initiating Output Diagnostic Test Mode (DTM)

1 article

Basic Setting (function 04)

1 article

Basic setting procedure for vehicles up to model year 2001

1 article

Basic setting procedure for vehicles from model year 2002

1 article

Continuation for all vehicles

1 article

Requirements

1 article

Erase DTC Memory

1 article

End Output

1 article

A/C Control Head -E87-, coding

1 article

Read Measuring Value Block (function 08)

1 article

Initiating "Read Measuring Value Block" function 08

1 article

Read measuring value blocks (vehicles up to model year 2001)

1 article

Display group 001: Compressor cut-off conditions, voltage for A/C clutch and at terminal 15

1 article

Interpretation of compressor cut-off condition for display field 1 - 4

1 article

Display group 017: Measuring values for Sunlight Photo Sensor -G107-, signal from windshield wiper switch for washer pump and windshield wiper

1 article

Display group 019: Input signal from auxiliary heating, running light on/off (terminal "58") and version of communication-matrix in A/C Control Head -E87

1 article

Display groups currently not to be used by dealerships

1 article

Special tools and equipment

1 article

Testing

1 article

Checking

1 article

Socket assignment for VAG 1598 test box with adapter lead VAG 1598/11

1 article

Electrical testing (vehicles up to model year 2001)

1 article

Outside temperature dependent resistance values of temperature sensors in Kohm (Kilo-Ohm)

1 article

Electrical testing (vehicles from model year 2002)

1 article

Temperature depending resistance values of sensor

1 article

Test step 3: Fresh air blower -V2- and Control module for fresh air blower -J126

1 article

Test Step 4: Air Conditioner Positioning Motors With Potentiometers

1 article

Checking pressure signal from High Pressure Switch -G65

1 article

Pressure signal from High Pressure Sensor -G65

1 article

For vehicles with A/C compressor regulator valve -N280- (coding of -E87-)

1 article

For vehicles with compressors using A/C clutch -N25-(coding of -E87-)

1 article

Test step 6: Activation for A/C Compressor Regulator Valve -N280

1 article

Test step 7: A/C Clutch Relay -J44- and activation of A/C clutch -N25

1 article

Test step 8: Activation of Coolant Fan -V7- (step 1 and 2)

1 article

Special tools, testers and auxiliary items

1 article

Test requirements

1 article

Sensor for air quality -G238-, function

1 article

CAN-bus system, checking

1 article

Bus-system, function

1 article

Isolating possible malfunction causes

1 article

Determine malfunction in CAN-bus system

1 article

Malfunction is indicated only by A/C Control Head -E87

1 article

Malfunction indicated in another control module

1 article