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)

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Regular Method

TEST # 6 (Regular Method)

CHECK FOR GROUND AT TERMINAL -D- AT THE TRANSMISSION

^ Check for ground at terminal D at the transmission.

^ On Non-computer-controlled vehicles skip this test and go directly to cooler line pressure, or surge test.

^ Raise the vehicle on the lift so the driving wheels are off the ground.




^ Unplug the wires at the case and connect the alligator clip of your test light to terminal A.

^ Place the tip of your test light on terminal D.

^ Start the engine and bring to normal operating temperature.

^ Place the selector in Drive. (O.D. on four speed units).

^ Accelerate slowly to 60 mph and the tester should light.

^ If the tester does not light you have a computer system problem. Go to test # 7 (Regular Method).