Volkswagen Passat 1995 Official Factory Repair Manual page 1714

Motronic Fuel Injection and Ignition system, component layout
Read measuring value block 1
1 2 3 4
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
Display will appear as shown: (1...4 =
Display zones)
Note:
If something different is indicated on the
display:
Scan Tool operating instructions
- Observe Engine Coolant
Temperature value in display zone 2.
The value must increase uniformly
and without interruption.
Notes:
If the Scan Tool display jumps by
2...5 C, this is caused by the
Control Module and not by a faulty
sensor.
An open circuit is indicated by 78.4
C.
If irregular engine running occurs in
certain temperature ranges and the
display value does not increase
without interruption, the temperature
signal is temporarily interrupted and
the sensor must be replaced.
- Press
button.
- Select Function 06 "End output" and
confirm with Q.
If the temperature value does not
change:
- Perform electrical check, test step
Fig. 18 page 01-41
Ignition), if necessary replace Engine
Coolant Temperature sensor (G62)
(first release pressure from cooling
system) Page 24-8
Page 51 of 59
24-38
(Fuel and
, item 5 .
6/12/2004