Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

No Response From PCM With A No Start Condition

Test 1 - 3:




Test 4 - 8:




Test 9:






SYMPTOM
NO RESPONSE FROM PCM WITH A NO START CONDITION

POSSIBLE CAUSES
- PCM fused B+ circuit
- PCM no response
- PCM fused ignition switch output circuit
- PCM ground circuits
- TP sensor 5-volt sensor open or shorted
- (K7) 5-volt supply circuit short to ground
- (K6) 5-volt circuit supply shorted to ground
- PCM