Honda Civic Service Manual page 937

Troubleshooting Flowchart - Shift Control System
NOTE: Record all freeze data before you troubleshoot.
Po$ible Cause
Faulty 3hift control system
OgD ll Scan Tool indicates Code
P'1890.
Self-diagnosi3 E indicator light
indicates Code 42.
Check for Anolhet Code:
C h e c k w h e t h e r t h e E i n d i c a t o r
light indicates another code.
P e r t o r m t h e T r o u b l e s h o o l i n g
F l o w c h r r t t o . t h € i n d i c e t . d
Codelsl.
l s t h e E i n d i c a t o r l i g h t i n d i
c a t e a n o t h e r c o d e ?
Check Stall Speed RPM:
M e a s u r e t h e s t a l l s p e e d R P M
(see page 14-298).
ls the stall speed over 3,500 rpm?
l s t h e s l a l l s p e e d b e l o w 2 . 0 o 0 r p m )
T e s t - d r i v e a n d C h e c k E n g i n e
Speed:
1 . D r i v e t h e v e h i c l e a t 3 0 m P h
(50 km/h) constantlY for sev_
eral manutes.
2. Check the engine speed
l s t h e e n g i n e s p e e d w i t h i n t h e
s p e c i f i c a t i o n ( s e e p a g e 1 4 2 9 6
and 14 297\?
14-259