Engine Controls - Motronic 1.8 Fault Codes

9214volvo01

MODEL GROUP NUMBER

900 28 107

TITLE

MOTRONIC 1.8 FAULT CODES

B6304F


MARKET DATE

US and Canada December 1991





REFERENCE: TP 31721/1 (ENGLISH); 11/90; MOTRONIC 1.8 Fuel/ignition System

Fault codes for Motronic 1.8


The following fault codes are new or expanded in order to provide additional Information. Some previous existing codes are sub-divided with enhanced detail for more specific diagnosis, which is explained under the "Function" heading following each code.





Fault codes when slow-acting adaptive system has compensated for a change in fuel/air mixture:





Fault codes when fast-acting adaptive system has compensated for a change in fuel/air mixture:





Fault codes when control unit does not sense reversal of signal from oxygen sensor (Lambdasond)





Fault codes when control unit senses difference in current consumption between injector groups





Fault codes when control unit cannot detect throttle opening