A6 Sedan V6-2.8L (AHA) (1998)
Throttle Valve Control Module: Component Tests and General Diagnostics
Closed Throttle Position (CTP) Switch, Checking
Required special tools and test equipment
-
VAG 1551 or VAG 1552 Scan Tool (ST) with VAG 1551/3 adapter cable
-
VAG 1598/22 test box
-
Multimeter US 1119 (Fluke 83 or equivalent)
-
VW 1594 connector test kit
-
Wiring diagrams
NOTE: The Closed Throttle Position (CTP) switch -F60- is inside the throttle valve control module -J338-.
Test conditions
-
Throttle valve in closed throttle position; if necessary adjust accelerator pedal cable.
-
Cruise control adjustment OK.
-
Power supply for throttle valve control module OK.
Checking
-
Connect VAG 1551 or VAG 1552 scan tool and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (with engine running at
idle).
Indicated on display
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -8- to select "Read Measuring Value Block" function 08, and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
HELP
Input display group number XXX
-
Press buttons -0-, -0- and -5- to input display group number 5 (005), and press -Q- button to confirm input.
Indicated on display (1-4 = display fields)
Read Measuring Valve Block 5
->
1
2
3
4
-
Check Closed Throttle Position (CTP) switch (display field 4):
Continuation
-
Switch ignition off.
-
Connect VAG 1598/22 test box to ECM harness connector.
-
Connect multimeter US119 (Fluke 83 or equivalent) and check resistance between test box sockets 67and 69.