Suzuki RA410 Manual page 545

7B-18 AUTOMATIC TRANSMISSION
ROAD TEST
This test is to check if upshift and downshift take place at specified
speeds while actually driving vehicle on a level road.
WARNING:
Carry out the test in very little traffic area to prevent an ac-
cident.
The test requires 2 persons, a driver and a tester.
Condition
No upshift from 1st to 2nd.
No upshift from 2nd to 3rd.
No downshift from 2nd to
1st or 3rd to 2nd.
"P" RANGE TEST
1) Stop vehicle on a slope, shift select lever to P range and at the
same time apply parking brake.
2) After stopping engine, release parking brake lever gradually and
check that vehicle remains stationary.
Possible causes
1–2 shift valve defective.
Shift solenoid A defective.
PCM defective, or
disconnection or poor
connection in PCM electric
circuit.
2–3 shift valve defective.
Shift solenoid B defective.
PCM defective, or
disconnection or poor
connection in PCM electric
circuit.
Throttle position sensor
defective.
PCM defective, or
disconnection or poor
connection in controller
electric circuit.