Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 3/2013 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

check engine light/transmission fault code 850

posted by  Rishi on  Sun Dec 14 10:50 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Following info may help you

DTC 134: INCORRECT LOAD SIGNAL
1) Load signal from ECM provides information to TCM on torque
being delivered by engine. If TCM does not register an incoming load
signal when RPM sensor on transmission gives a signal that input shaft
RPM is greater than about 600 RPM, DTC 134 will set.
2) If DTC 134 is set, check for poor terminal contact in
connectors between TCM and ECM. Also check for an open, short circuit
to voltage, or short circuit to ground in signal wiring between ECM
and TCM. If all circuits are okay, connect scan tool to DLC. Ensure
engine is warm, transmission is in neutral, and A/C is off. Select
SCROLLING VALUES. Load signal should be about 35. If load signal is
okay, replace TCM. If load signal is not okay, replace ECM.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New check engine light/transmission fault code [850]
posted by  someone claiming to be some 850 guy  on Sun Dec 14 08:02 CST 2003 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.