Suzuki Wagon R RB310 Supplementary Service Manual page 108

Step
3 1) Disconnect output shaft speed sensor –
input shaft speed sensor coupler. (See fig-
ure.)
2) Measure resistance between terminal "3"
(of disconnected sensor side coupler) and
body ground then terminal "4" (of discon-
nected sensor side coupler) and body
ground.
Is it about 0 Ω?
(See figure.)
4 1) Connect output shaft speed sensor coupler.
2) Measure resistance between terminal "E12-
6" (of disconnected harness side coupler)
and body ground then terminal "E12-14" (of
disconnected harness side coupler) and
body ground.
Is it about 0 Ω?
(See figure.)
5 Measure resistance between terminal "E12-6"
and "E12-13" (of disconnected harness side
coupler) then terminal "E12-14" and "E12-13"
(of disconnected harness side coupler).
Is it about 0 Ω?
(See figure.)
Figure for Step 1, 2
Figure for Step 2, 3
Action
1. Output shaft speed sensor
2. Input shaft speed sensor coupler
1. Terminal "3"
2. Terminal "4"
AUTOMATIC TRANSMISSION (4 A/T) 7B-35
Yes
Replace output shaft
speed sensor.
"W" or "B" wire shorted to
ground.
"W" wire or "B" wire
shorted to shield portion.
No
Go to Step 4.
Go to Step 5.
Poor connection of termi-
nal "E12-6" or "E12-14" of
the TCM.
If all the above are in good
condition, substitute a
known-good TCM and
recheck.