Operation CHARM: Car repair manuals for everyone.
Home >> Buick >> 1994 >> Century L4-2.2L VIN 4 >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Component Tests and General Diagnostics >> Test F
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

Test F

1. If measurement is less than 15 ohms, remove connector from cruise control servo and measure resistance between terminals B and D of cruise control servo.
2. If resistance is greater than 25 ohms, replace cruise control servo.
3. If resistance is less than 25 ohms, check for open in light blue/black wire (circuit 399) between terminal H of cruise control module and terminal D of cruise control servo. Also, check for open in tan wire (circuit 398) between terminal F of cruise control module and terminal B of cruise control servo.
pro multis · About Operation CHARM