A4 Quattro Sedan V6-2.8L (ACK) (1997)
Throttle Valve Control Module: Component Tests and General Diagnostics
Closed Throttle Position (CTP) Switch, Checking
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.
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
Read Measuring Valve Block 5
->
1
2
3
4
-
Check closed throttle position (CTP) switch (display field 4):
Display Group 5
Continuation
-
Switch ignition off.
-
Connect VAG 1598/22 test box to ECM harness connector.
-
Connect multimeter US1119 (Fluke 83 or similar) and check resistance between test box sockets 67 and 69.
-
Specified value: max. 5.0 ohms
-
Open throttle slowly.
-
Specified value: Infinity ohms