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

Component Tests

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Tests 49 - 54:




Tests 55 - 59:




Tests 60 - 62:





SYMPTOM
CHECKING SPEED CONTROL OPERATION WITH NO DTC'S PRESENT

POSSIBLE CAUSES
- Brake switch ground circuit open
- Ground circuit at S/C servo connector open
- Ground circuit to S/C RESUME/ACCEL switch connector open
- S/C SW signal circuit to clockspring connector open
- Brake switch sense circuit open
- Brake switch sense circuit shorted to ground
- DRB does not show SET switch "pressed" or "released"
- S/C wiring harness observable problem
- CANCEL switch
- COAST switch
- Throttle cable observable problem
- Throttle opens and closes
- PCM (brake sense)
- Brake switch (sense circuit)
- Speed control ON/OFF switch stuck
- Speed control RESUME/ACCEL switch
- Speed control RESUME/ACCEL switch stuck