Suzuki Wagon R Plus RB310, Service Manual

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ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-147
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
or less?
Go to Step 4. “WHT” wire circuit open or
high resistance.
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 ?
Go to Step 4. “WHT” wire in shorted to
power circuit.
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?
Go to Step 6. “WHT” wire in shorted to
ground circuit.
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.
Is resistance 1
Ω
or less?
Go to Step 7. “RED” wire circuit open or
high resistance.
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?
Go to Step 8. “RED” wire in shorted to
power circuit.
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?
Go to Step 9. “RED” wire in shorted to
ground circuit.
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?
Substitute a known-good
TCM and recheck.
If OK, substitute a known-
good ECM and recheck. Substitute a known-good
ECM and recheck.
Step Action Yes No