Volkswagen CPYC - Final Control Diagnosis; Performing Final Control Diagnosis

Indicated on display Possible cause of fault Possible effects Fault remedy
54282/U140A
Terminal 30
Open circuit
◆ Voltage supply too
small
◆ Defective terminal 30
voltage supply relay
-J317-
◆ Engine will not start
◆ Various issues during
operation including
engine will not start
– Check voltage supply
for engine control unit
-J623- ⇒ Page 417
4 Final control diagnosis
Performing final control diagnosis ⇒ Page 89
4.1 Performing final control diagnosis
The final control diagnosis activates the following components
in the stated sequence:
1 - Exhaust gas recirculation valve -N18-
2 - Charge pressure control solenoid valve -N75-
3 - Alternator shutdown device (if fitted)
4 - Throttle valve module -J338-
5 - Glow period warning lamp -K29- (if fitted)
6 - Exhaust emissions warning lamp -K83- (if fitted)
7 - Warning lamp for diesel particle filter -K231-
8 - Radiator fan control unit -J293-, radiator fan activation as-
sembly 1 (if fitted)
9 - Automatic glow period control unit -J179-
10 - Electric fuel pump relay -J49-
11 - Supplementary fuel pump -V393-
Note
◆ Activation of individual final controls is limited to 120 s but
can be stopped at any time by pressing the → button.
◆ The ignition must be switched off before repeating the final
control diagnosis.
Test prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
● All electrical consumers must be switched off.
● Earth connections OK
● Coolant temperature must be at least 80°C, ⇒ display group
1, display zone 4.
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
4 Final control diagnosis
89