Suzuki Wagon R Plus RB310, Service Manual

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ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-117
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Crank engine for 5 sec.
4) Check DTC and pending DTC.
Troubleshooting
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2. Go to “Engine and
Emission Control
System Check” in
this section.
2 Check CMP sensor and connector for proper installa-
tion.
Is CMP sensor installed properly and connector con-
nected securely? Go to Step 3. Correct.
3 Check Wire Harness and Connection.
1) Disconnect connector from CMP sensor.
2) Check for proper connection to CMP sensor at
“BLK/RED”, “ORN” and “BLK” wire terminals.
3) If OK, turn ignition switch ON and check for volt-
age at “BLK/RED”, “ORN” and “BLK” wire termi-
nals of disconnected CMP sensor connector. See
fig. 1.
Terminal “B+”: 10 – 14 V
Terminal “Vout”: 4 – 5 V
Terminal “GRD”: 0 V
Is check result satisfactory?
Go to Step 5. Go to Step 4.
4 Was terminal “Vout” voltage in Step 3 out of specifica-
tion? “ORN” wire open, short
or poor connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck. “BLK/RED” and
“BLK” wire open,
short or poor con-
nection.
5 Check Ground Circuit.
1) Turn ignition switch to OFF position.
2) Check for continuity between “BLK” wire terminal
of CKP sensor connector and engine ground.
Is continuity indicated?
Go to Step 6. “BLK” wire open or
poor connection.
6 Check Engine Start Signal.
1) Check voltage between “E22-35” wire terminal of
ECM connector and engine ground with engine
cranking.
Does it voltage more than 6 V?
Go to Step 7. “BLK/YEL” wire cir-
cuit open or shorted
to ground.
If wire are OK, check
starting motor refer-
ring to “Performance
Test” in Section 6G.