1998 AUDI A6

Audi A6 1998 - BUZZERS, RELAYS & TIMERS

Audi A6 1998 BUZZERS, RELAYS & TIMERS

Component	Component Location
A/C Clutch Relay	On 13-fold relay panel. See Fig. 6.
Coolant Fan Control (FC) Relay	On 8-fold relay panel. See Fig. 5.
Dual Horn Relay	On micro central electric panel. See Fig. 3.
Foglight Relay	On 13-fold relay panel. See Fig. 6.
Fuel Pump Relay	On micro central electric panel. See Fig. 3.
Load Reduction Relay	On micro central electric panel. See Fig. 3.
Second Speed Coolant Fan Control (FC) Relay	On 8-fold relay panel. See Fig. 5.
Secondary Air Injection (AIR) Pump Relay	On 3-fold relay panel. See Fig. 4.
Selector Lever Light Relay	On 13-fold relay panel. See Fig. 6.
Solar Cell Separation Relay	On 13-fold relay panel. See Fig. 6.
Starting Interlock Relay	On 13-fold relay panel. See Fig. 6.
Wiper/Washer Intermittent Relay	On micro central electric panel. See Fig. 3.

Audi A6 1998 - CIRCUIT PROTECTION DEVICES

Audi A6 1998 CIRCUIT PROTECTION DEVICES

Component	Component Location
ABS Control Module Fuse	On 8-fold relay panel. See Fig. 5.
Control Module Fuse (For Coolant Fan)	On 8-fold relay panel. See Fig. 5.
Coolant Fan Fuse	On 8-fold relay panel. See Fig. 5.
Coolant Fan Fuse	On 8-fold relay panel. See Fig. 5.
Fuse Panel	Left side of dash.
Micro Central Electric Panel	Behind left side of dash.
Power Seat Circuit Breaker No. 1 (Driver's Seat)	On 8-fold relay panel. See Fig. 5.
Power Seat Circuit Breaker No. 2 (Passenger's Seat)	On 8-fold relay panel. See Fig. 5.
Power Window Circuit Breaker (Front)	On 8-fold relay panel. See Fig. 5.
Power Window Circuit Breaker (Rear)	On 8-fold relay panel. See Fig. 5.
Rear Shade Fuse	On micro central electric panel. See Fig. 3.
Secondary Air Pump Fuse	On 13-fold relay panel. See Fig. 6.
3-Fold Relay Panel	Left rear of engine compartment, in plenum chamber.
8-Fold Relay Panel	Behind left side of dash.
13-Fold Relay Panel	Behind left side of dash.

Audi A6 1998 - CONTROL UNITS

Audi A6 1998 CONTROL UNITS

Component	Component Location
ABS Control Module	Integral with ABS hydraulic unit, left side of engine compartment.
ABS Hydraulic Unit	Left side of engine compartment.
Air Bag Control Module	Below front of center console. See Fig. 2.
Central Locking Control Module	Below driver's seat & carpet. See Fig. 2.
Cruise Control Module	Behind glove box. See Fig. 2.
Engine Control Module (ECM)	In electronic box, left side of fresh air plenum. See Fig. 1.
Fresh Air Blower Control Module	Behind right side of dash. See Fig. 2.
Headlight Adjustment System Control Module	On left side of luggage compartment. See Fig. 2.
Light Control Module	On 13-fold relay panel. See Fig. 6.
Mirror Fold-Away Control Module	On 13-fold relay panel. See Fig. 6.
Rear Window Shade Control Module	On left side of luggage compartment. See Fig. 2.
Servotronic Control Module	On 13-fold relay panel. See Fig. 6.
Throttle Valve Control Module	On throttle body. See Fig. 1.
Transmission Control Module (TCM)	Under right front seat & carpet. See Fig. 2.
Ultra-Sound Sensor Control Module	Mounted below left "C" pillar. See Fig. 2.

Audi A6 1998 - MOTORS

Audi A6 1998 MOTORS

Component	Component Location
ABS Return Flow Pump	Part of ABS hydraulic unit.
Airflow Flap Motor/Position Sensor	Near blower motor fresh air intake.
Central Air Flap Motor/Position Sensor	On right side of evaporative housing.
Cruise Control Vacuum Pump	Left side of engine compartment. See Fig. 2.
Defroster Flap Motor/Position Sensor	On right side of evaporative housing.
Fresh Air Blower	Behind right side of dash.
Fuel Pump	In fuel tank.
Fuel Tank Lid Unlock Motor	On right side of luggage compartment. See Fig. 2.
Leak Detection Pump (LDP)	At back of left rear wheelhousing.
Secondary Air Injection (AIR) Pump Motor	Right front corner of engine compartment.
Temperature Flap Actuator/ Potentiometer (Left)	On left side of evaporative housing.
Temperature Flap Actuator/ Potentiometer (Right)	On right side of evaporative housing.

Audi A6 1998 - SENDING UNITS/SENSORS

Audi A6 1998 SENDING UNITS/SENSORS

Component	Component Location
ABS Wheel Speed Sensors (4)	Mounted at each respective wheel bearing housing.
Camshaft Position (CMP) Sensor	On front of right cylinder head. See Fig. 1.
Camshaft Position (CMP) Sensor No. 2	On rear of left cylinder head. See Fig. 1.
Central Flap Motor Position Sensor	On right side of evaporator housing.
Engine Coolant Temperature (ECT) Sensor	On coolant pipe behind intake manifold. See Fig. 1.
Engine Coolant Temperature (ECT) Sensor (For Gauge)	On coolant pipe behind intake manifold.
Engine Oil Temperature Sensor	Front left side of engine block.
Engine Speed (RPM) Sensor	On left side of transmission housing.
Fresh Air Intake Duct Temperature Sensor	Behind right side of dash.
Fuel Level Sensor	In fuel tank.
Heated Oxygen Sensor (HO2S) No. 1	Right side of engine, in exhaust pipe below manifold.
Heated Oxygen Sensor (HO2S) No. 2	Left side of engine, in exhaust pipe below manifold.
Intake Air Temperature (IAT) Sensor	Mounted in intake air duct at rear of intake manifold. See Fig. 1.
Knock Sensor (KS) No. 1	Below intake manifold, near right cylinder head. See Fig. 1.
Knock Sensor (KS) No. 2	Below intake manifold, near left cylinder head. See Fig. 1.
Mass Airflow (MAF) Sensor	On air cleaner assembly. See Fig. 1.
Outside Air Temperature Sensor	In front of A/C condenser. See Fig. 2.
Oxygen Sensor (O2S)	Behind three way catalytic converter.
Oxygen Sensor (O2S) No. 2	Behind three way catalytic converter.
Side Air Bag Crash Sensor (Driver Side)	Under driver's seat, on floor pan crossmember.
Side Air Bag Crash Sensor (Passenger Side)	Under passenger's seat, on floor pan crossmember.
Speedometer Vehicle Speed Sensor (VSS)	On left side of transmission. See Fig. 2.

Audi A6 1998 - SOLENOIDS/SOLENOID VALVES

Audi A6 1998 SOLENOIDS/SOLENOID VALVES

Component	Component Location
Evaporative Emission (EVAP) Canister Purge Regulator Valve	Right side of engine compartment. See Fig. 1.
Intake Manifold Tuning (IMT) Valve	At back of intake manifold. See Fig. 1.
Secondary Air Injection (AIR) Solenoid Valve	At back of intake manifold. See Fig. 1.
Shift Lock Solenoid	Under center console, part of gear selector mechanism. See Fig. 2.
Valve No. 1 (For Camshaft Adjustment)	On back of right cylinder head. See Fig. 1.
Valve No. 2 (For Camshaft Adjustment)	On front of left cylinder head. See Fig. 1.

Audi A6 1998 - SWITCHES

Audi A6 1998 SWITCHES

Component	Component Location
A/C Pressure Switch	On right side of A/C condenser. See Fig. 2.
Brake Fluid Level Warning Switch	In master cylinder fluid reservoir.
Brakelight Switch	On brake pedal support bracket.
Brake Vacuum Vent Valve Switch	On brake pedal support bracket.
Coolant Fan Control Thermal Switch	On lower right side of radiator.
Engine Coolant Level Warning Switch	At bottom of coolant reservoir/expansion tank.
Hood Alarm Switch	Part of hood latch assembly.
Kickdown Switch	On firewall, part of throttle cable. See Fig. 2.
Multifunction Transmission Range (TR) Switch	On left side of transmission. See Fig. 2.
Oil Pressure Switch	On oil filter housing.
Parking Brake Warning Light Switch	At parking brake lever mechanism.
Triptronic Switch	Integrated in gear selector cover/trim assembly.

Audi A6 1998 - MISCELLANEOUS

Audi A6 1998 MISCELLANEOUS

Component	Component Location
Alarm Horn	On left side of luggage compartment.
Coolant Fan Control (FC) Series Resistance	Behind left side of front bumper, on chassis member. See Fig. 2.
Data Link Connector (DLC)	Below left side of dash.
Ignition Coil	On front center of engine. See Fig. 1.
Ignition Coil No. 2	On front center of engine. See Fig. 1.
Ignition Coil No. 3	On front center of engine. See Fig. 1.
Power Output Stage	On front center of engine. See Fig. 1.
Seat Belt Tension Ignitors (2) (Left & Right)	At bottom of respective "B" pillar.

Audi A6 1998 - CONNECTORS

Audi A6 1998 CONNECTORS

Component	Component Location
T6A (Blue, 6 Pin)	Above left kick panel.
T6B (White, 6 Pin)	Above left kick panel.
T6E (Gray, 6 Pin)	Above right kick panel.
T6F (Brown, 6 Pin)	Above right kick panel.
T6I (Red, 6 Pin)	Above right kick panel.
T6K (Pink, 6 Pin)	Above right kick panel.
T6L (Red, 6 Pin)	In E-box, at left rear of engine compartment.
T6P (Red, 6 Pin)	Below left front seat.
T6R (Brown, 6 Pin)	In luggage compartment.
T8C (Black, 8 Pin)	In left front door.
T10A (Pink, 10 Pin)	Above left kick panel.
T10B (Red, 10 Pin)	Above left kick panel.
T10C (Gray, 10 Pin)	Above left kick panel.
T10E (Violet, 10 Pin)	Above left kick panel.
T10F (Brown, 10 Pin)	Above left kick panel.
T10H (Black, 10 Pin)	Above left kick panel.
T10I (Brown, 10 Pin)	Above left kick panel.
T10K (Orange, 10 Pin)	Above left kick panel.
T10N (Yellow, 10 Pin)	In E-box, at left rear of engine compartment.
T10O (Brown, 10 Pin)	In E-box, at left rear of engine compartment.
T10P (Black, 10 Pin)	In E-box, at left rear of engine compartment.
T10T (Orange, 10 Pin)	Above right kick panel.
T10U (Black, 10 Pin)	Above right kick panel.
T10V (Brown, 10 Pin)	Above right kick panel.
T10W (Blue, 10 Pin)	Above right kick panel.
T10X (Pink, 10 Pin)	Above right kick panel.
T10Y (Green, 10 Pin)	Above right kick panel.
T15A (Black, 15 Pin)	Above left kick panel.
T15D (Black, 15 Pin)	Above right kick panel.
T15E (White, 15 Pin)	In E-box, at left rear of engine compartment.

Audi A6 1998 - GROUNDS

Audi A6 1998 GROUNDS

Component	Component Location
G12	On left side of engine compartment.
G13	On right side of engine compartment.
G18	On engine block.
G19	On engine block.
G22	On ABS hydraulic unit.
G43	Near lower right "A" pillar.
G44	Near lower left "A" pillar.
G75	At right rear pillar.