Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
-
Measure resistance between terminals of bypass regulator valve.
Engine code ALH
^
Specification: 14.0 to 20.0 Ohms
Note: At room temperature the resistance value is at the lower tolerance range, at operating temperature the resistance is in the upper tolerance
range.
If specification not obtained:
-
Replace Wastegate Bypass Regulator valve -N75-.
-
Check Diagnostic Trouble Code (DTC) memory.
-
Read readiness code.
If DTC memory was erased or engine control module is subject to low voltage with ignition ON, reset readiness code.
If the specification was obtained:
-
Check voltage supply of Wastegate Bypass Regulator valve-N75-.
Voltage supply, checking
-
Connect multimeter and check voltage supply.
-
Connect jumper wire from test kit VAG 1594 to terminal 1 and engine ground
-
Switch ignition on.
^
Specification: 11.5V
If specification was not obtained:
-
Switch ignition off.
-
Remove windshield wiper arms and plenum cover.