Suzuki WagonR+ RB310 Service Manual page 718

Step
3 Circuit Check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from ECM and
TCM.
3) Check for proper connection to "E21-7" ter-
minal of ECM connector and "E13-7" termi-
nal of TCM connector.
4) If OK, measure resistance between "E21-7"
terminal of ECM connector and "E13-7" ter-
minal of TCM connector.
Is resistance 1 Ω
4
Circuit Check
1) Turn ignition switch to ON position.
1) Measure voltage between "E21-7" terminal of
ECM connector and vehicle body ground.
Is voltage 0 – 1 V ?
5 Circuit Check
1) Turn ignition switch to OFF position.
2) Measure resistance between "E21-7" termi-
nal of ECM connector and vehicle body
ground.
Is it infinite?
6 Circuit Check
1) Check for proper connection to "E21-8" ter-
minal of ECM connector and "E13-17" ter-
minal of TCM connector.
2) If OK, measure resistance between "E21-8"
terminal of ECM connector and "E13-17"
terminal of TCM connector.
Ω
Is resistance 1
7 Circuit Check
1) Turn ignition switch to ON position.
2) Measure voltage between "E21-8" terminal
of ECM connector and vehicle body ground.
Is voltage 0 – 1 V?
8 Circuit Check
1) Turn ignition switch to OFF position.
2) Measure resistance between "E21-8" termi-
nal of ECM connector and vehicle body
ground.
Is it infinite?
9 DTC Check
1) Connect connectors to ECM and TCM.
2) Connect scan tool to DLC.
3) Check DTC of TCM.
Is DTC P1701 indicated?
Action
or less?
or less?
ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-147
Yes
Go to Step 4.
Go to Step 4.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
Substitute a known-good
TCM and recheck.
If OK, substitute a known-
good ECM and recheck.
No
"WHT" wire circuit open or
high resistance.
"WHT" wire in shorted to
power circuit.
"WHT" wire in shorted to
ground circuit.
"RED" wire circuit open or
high resistance.
"RED" wire in shorted to
power circuit.
"RED" wire in shorted to
ground circuit.
Substitute a known-good
ECM and recheck.