How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dan Your Own Question
Dan, Technician
Category: Pontiac
Satisfied Customers: 23966
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Type Your Pontiac Question Here...
Dan is online now
A new question is answered every 9 seconds

2000 Sonfire. CEL in op, NO op at all, sunfire se, Cluster

Customer Question

2000 Sonfire. CEL in op
JA: Does the light stay on, or does it blink?
Customer: NO op at all
JA: What is the model of your '00 Pontiac?
Customer: sunfire se
JA: Are you fixing your Sunfire yourself? What have you tried so far?
Customer: Cluster replacement. Fuses good
JA: Anything else you want the mechanic to know before I connect you?
Customer: Am actually ase cret myself
Submitted: 6 months ago.
Category: Pontiac
Expert:  Dan replied 6 months ago.

Hello, my name is ***** ***** I'm here to help get your problem solved.

Expert:  Dan replied 6 months ago.

The PCM grounds the brown/white wire at on pin 46 to turn on check engine light. So start by unplugging PCM and grounding wire to see if light comes on, if so replace PCM. If not, run new wire between PCM and instrument cluster. Here is a wiring diagram of circuit to help with testing, let me know if you have questions. Thanks.