Toyota Celica Supra 1986 Service And Repair Manual page 303

AT-28
P~rking
Look
Piwl Acting
AUTOMATIC TRANSMISSION - Road Test
Fun
Thronle V11ve
Optnlne
Slippage
Vehicle on Gradient
4 .
" R" RANGE TEST
Snift into "R" range and, wnile starting at full thronlt.
cnock for slipping.
6.
" P" RA. N GE TEST
Stop the vehicle on a gradient (more tnan 9 'II. I and efur
shifting into "P" range, release the parking brake.
Then
check to see that the parking lock pawl is functioning 10
prevent the vehicle from moving.