Beetle L4-1.9L DSL Turbo (ALH) (1998)
-
Press -> button.
Indicated on display:
Output Diagnostic Test Mode
->
Wastegate Bypass Regulator Valve -N75-
The solenoid valve must operate and the rod for the charge pressure control pressure unit on the turbocharger must move back and forth (at least 3 - 4
times, as long as there is vacuum in the vacuum reservoir).
If the solenoid valve does not operate:
-
Check charge pressure control solenoid valve -N75-
Activate Glow Plug Relay -J52-:
-
Press -> button.
Indicated on display:
Output Diagnostic Test Mode
->
Glow Plug Relay J52
Relay must click.
Switching relay on and off can also be observed by the brightening and dimming of the interior light as a result of glow plug power consumption.
If relay does not click:
-
Check glow plug relay.
Activate Glow Plug Indicator Lamp -K29-:
-
Press -> button.
Indicated on display:
Output Diagnostic Test Mode
->
Glow Plug Indicator Lamp -K29-
Glow Plug Indicator Light -K29- must blink.
Glow Plug Indicator Light -K29- does not blink:
-
Check Glow Plug Indicator Lamp -K29-.
Activating Relay for low heat output -J359- (only on vehicles with manual transmission):
-
Press -> button.
Indicated on display:
Output Diagnostic Test Mode
->
Low heater output relay -J359-
Relay must click.
If relay does not click:
-
Check low heat output relay:
Activating Relay for high heat output -J360- (vehicles with manual transmission):
-
Press -> button.
Indicated on display:
Output Diagnostic Test Mode
->
High heat output relay -J360-