![Volkswagen Passat 1995 Official Factory Repair Manual Download Page 48](http://html.mh-extra.com/html/volkswagen/passat-1995/passat-1995_official-factory-repair-manual_1045486048.webp)
01-34
VAG 1551 print-out
Possible cause of malfunction
Repairing malfunction
00638
Open circuit or short to Ground (GND)
- Check wiring and connections
according to wiring diagram
Engine/trans.
electrical
connection 2
No connection between Engine Control
Module (ECM) and Transmission Control
Module (TCM)
Repair Manual, Fuel Injection &
Ignition, Repair Group 01 for
relevant engine code
- Read measured value block
page 01-40
; display group number
05
- Check Engine Control Module,
replace if necessary
No signal
- Bring system to basic settings
page 01-39
00641
Transmission becomes too hot, max.
148 C (298 F). If ATF temperature is too
high, transmission shifts down into next
lower gear.
- Check ATF level
page 37-43
- Read measured value block
page 01-40
; display group number
05; read transmission fluid
temperature
Transmission fluid
temperature
Trailer load of vehicle too high
Signal too
large
ATF level not correct
Page 15 of 43
On Board Diagnostic (OBD) program
12/6/2004
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.AT02.01.2
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