Suzuki Wagon R Manual page 1606

DTC P0705 Transmission range sensor (switch) circuit malfunction
1. Transmission range sensor (shift switch)
2. TCM
DTC DETECTING CONDITION
• No shift switch signal inputted or two or more shift switch signals inputted at the same time.
Step
1 1) Turn ignition switch OFF, disconnect TCM
couplers.
2) Turn ignition switch ON, check voltage
between terminal "E12-1" and "E13-15" of
disconnected harness side TCM coupler.
Is it 10 – 14 V at "P" range and 0 V at the other
range?
2 While ignition switch ON, check voltage
between terminal "E12-2" and "E13-15" of dis-
connected harness side TCM coupler.
Is it 10 – 14 V at "R" range and 0 V at the other
range?
3 While ignition switch ON, check voltage
between terminal "E12-3" and "E13-15" of dis-
connected harness side TCM coupler.
Is it 10 – 14 V at "N" range and 0 V at the other
range?
4 While ignition switch ON, check voltage
between terminal "E12-9" and "E13-15" of dis-
connected harness side TCM coupler.
Is it 10 – 14 V at "D" range and 0 V at the other
range?
3. TCM couplers (viewed from harness side)
4. Power source
Action
AUTOMATIC TRANSMISSION (4 A/T) 7B-39
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
Go to Step 5.
No
Go to Step 7.
Go to Step 7.
Go to Step 7.
Go to Step 7.