Suzuki RA410, Manual

Page: 548 / 761

AUTOMATIC TRANSMISSION 7B-21
1. Solenoid coupler
2. Transmission range
switch
Terminal arrangement of PCM coupler
“S2” “S1”
S1
S2
W/BI
W/R
“A”
SOL-A
SOL-B
“B”
PCM
1
W/Bl wire harness
W/R wire harness
2
1
DTC 41 – SHIFT SOLENOID-A CIRCUIT
DTC 42 – SHIFT SOLENOID-B CIRCUIT
DTC 41 – TROUBLE SHOOTING
Step Action Yes No
1
1) Disconnect PCM coupler with ignition switch
OFF.
2) Check resistance between “S1” terminal
and engine ground.
Is it about 20 ?
Poor connection at “S1”
terminal of PCM coupler.
If OK, substitute known-
good PCM and recheck. Go to Step 2.
2
Is there continuity between “S1” terminal and
engine ground? Go to Step 3. Go to Step 5.
3
Check continuity between “S1” terminal of
PCM coupler and body ground.
Is there continuity?
“W/R” wire shorted to
ground. Go to Step 4.
4
Check continuity between “A” terminal of trans-
mission side and engine ground.
Is there continuity?
Solenoid wire harness
shorted to ground. Re-
place shift solenoid as-
sembly. Intermittent trouble.
5
Check continuity between “S1” terminal of
PCM coupler and “A” terminal of body side.
Is there continuity?
Go to Step 6. “W/R” wire open.
6
Check resistance between “A” terminal of
transmission side and engine ground.
Is it about 20 ?
Poor connection at “A”
terminal of shift solenoid
coupler. Shift solenoid wire open.
Replace shift solenoid
assembly.