SPONSORED LINKS

1994 Geo Prizm

Tiny
ANEL
  • MEMBER
  • 1994 GEO PRIZM
Electrical problem
1994 Geo Prizm 4 cyl Two Wheel Drive Manual

Light on (MIL) and code is 12 (engine speed sensor circuit). What damage represent this code in the engine function? Where to locate the sensor?
Tuesday, July 27th, 2010 AT 8:30 AM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Code would disable cruise control.

Sensor is on transmission.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, July 31st, 2010 AT 10:46 AM
Tiny
ANEL
  • MEMBER
  • 11 POSTS
Thanks for your response.

Code 42 is vehicle speed sensor (Speedometer).
And code 12 is engine speed sensor circuit (RPM) signal. The OBD scan screen said.

What symptom represents this code in the engine function?
Where to locate the sensor?
Was this
answer
helpful?
Yes
No
Sunday, August 1st, 2010 AT 1:42 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Sensor is near output shafts on tranny.
Was this
answer
helpful?
Yes
No
Monday, August 2nd, 2010 AT 8:56 AM

Please login or register to post a reply.

Related Transfer Case Content

VIEW MORE

Sponsored links