Suzuki WagonR+ RB310, Service Manual

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ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-113
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 3
– 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 Sys-
tem Check
” in this sec-
tion.
2 Check CKP sensor and connector for proper
installation.
Is CKP sensor installed properly and connector
connected securely? Go to Step 3. Correct.
3 Check Wire Harness and Connection.
1) Disconnect connector from CKP sensor.
2) Check for proper connection to CKP sensor at
“ BLK/RED ” , “ PNK ” and “ BLK ” wire terminals.
3) If OK, turn ignition switch ON and check for
voltage at “ BLK/RED ” , “ PNK ” and “ BLK ” wire
terminals of disconnected CKP sensor con-
nector. 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 speci-
fication?
“ PNK ” 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 connection.
5 Check Ground Circuit.
1) Turn ignition switch to OFF position.
2) Measure resistance between
“ BLK ” wire termi-
nal of CKP sensor connector and engine
ground.
Is resistance below 5
Ω
?
Go to Step 6. “ BLK ” wire open or
high resistance.
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 circuit
open, high resistance
or shorted to ground.
If wire are OK, check
starting motor refer-
ring to
“ Performance
Test ” in Section 6G.