Th200 tcc schematics

a.graham52

a.graham52

Apprentice
Oct 19, 2017
95
27
8
#1
Anyone have some good ones? HAYNES doesn't show squat with trans wiring.

85 cutlass v6

On my way home Friday night the tcc stopped locking. Then it would only lock under long periods of coasting like down hill. Once locked it would stay until I got to a moderate hill and then unlocked much sooner then normal. Now it will lock once but once it's forced to unlock it won't lock again. Grounding terminal F WILL lock it. I'm leaning towards a sensor reading being off. No CEL. On my way back to new hampshire I'm going to borrow a buddy's modis and see what the sensors are reading.

Check all the vacuum lines too btw
 
ssn696

ssn696

Comic Book Super Hero
Supporting Member
Jul 19, 2009
3,280
2,040
113
New Mexico
#2
Brake pedal switch is faulty or is out of adjustment? This one is normally closed, opening the circuit when the brake pedal is pushed, but if the contacts are dirty or damaged, it may not complete the circuit.
 
a.graham52

a.graham52

Apprentice
Oct 19, 2017
95
27
8
#3
Brake pedal switch is faulty or is out of adjustment? This one is normally closed, opening the circuit when the brake pedal is pushed, but if the contacts are dirty or damaged, it may not complete the circuit.
Already checked, cleaned and adjusted
 

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