TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
-
End diagnosis and switch ignition off.
If specified values are not obtained:
-
Connect test box to control module wiring harness, connect test box for wiring test. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box,
Connecting For Wiring Test
Engine Control Module (ECM) is not connected.
-
Measure resistance of throttle valve drive between test box sockets 117 + 118
Specified value: 1...5 Ohm
If specified value is not obtained:
-
Replace Throttle Valve Control Module -J338-.
-
Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Diagnostic Mode 4:
Reset/Erase Diagnostic Data
-
Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes/Audi Drive Cycle/Readiness Code/With Generic Scan Tool/Readiness Code, Generating
If specified value is obtained:
-
Check voltage supply of throttle valve control module and wiring to control module.
-
Check Throttle Position (TP) sensor.
If voltage supply and wires are OK:
-
Replace Engine Control Module (ECM).
Checking voltage supply and wiring to control module
-
Disconnect connector at throttle valve control module.
-
Connect multimeter to terminals 2 + 6 of connector for voltage measurement.
-
Switch ignition on.
Specified value: about 5 V
-
Switch ignition off.
-
Connect multimeter to terminal 2 of connector and Ground (GND) for voltage measurement.
-
Switch ignition on.
Specified value: about 5 V
-
Switch ignition off.
If specified values are not obtained:
-
Connect test box to control module wiring harness, connect test box for wiring test. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box,
Connecting For Wiring Test