Suzuki WagonR+ RB310 Service Manual page 1454

DTC P0710 Transmission fluid temperature sensor circuit malfunction
1. Transmission fluid temperature sensor
2. Coupler
DTC DETECTING CONDITION
• A/T fluid temperature signal input voltage too low.
• A/T fluid temperature signal input voltage does not go down although standard value of engine revolution
signal input.
Step
1 1) Turn ignition switch OFF and disconnect
sensor wire harness coupler.
2) Measure resistance between "Bl" wire and
"G" wire terminal of sensor side coupler.
Is it infinity or 0 Ω?
2 1) Turn ignition switch OFF and disconnect
TCM couplers.
2) Check continuity between terminal "E13-3"
of disconnected harness side TCM coupler
and ground.
Is continuity indicated?
3 1) Connect sensor wire harness coupler.
2) Measure resistance between terminals
"E13-3" and "E13-16" of disconnected har-
ness side coupler.
Is it about 0 Ω or infinity?
3. TCM
4. TCM couplers (viewed from harness side)
Action
AUTOMATIC TRANSMISSION (4 A/T) 7B-43
Yes
Faulty transmission fluid
temperature sensor.
Replace transmission
temperature sensor.
"Bl" wire shorted to
ground.
"Bl" or "G" wire open,
shorted each other or
poor connection of sole-
noid wire harness coupler.
No
Go to Step 2.
Go to Step 3.
Go to Step 4.