Suzuki Liana RH418, Supplementary Service Manual

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1A-91 Engine General Information and Diagnosis:
10 Check PNP signal (“D” range signal)
1) Connect SUZUKI scan tool to DLC with ignition switch
OFF.
2) Turn ignition switch ON and check PNP signal (“P/N”
and “D” range) on display when shifting selector lever to
each range.
PNP signal
“P” and “N” range: P/N range
“R”, “D”, “2” and “L” range: D range
Is check result satisfactory?
Go to Step 12. Repair or replace.
11 Check PNP signal (“D” range signal)
1) Turn ignition switch ON.
2) Check voltage at terminal “G03-6” of ECM connector
connected.
PNP signal
“P” and “N” range: 10 – 14 V
“R”, “D”, “2” and “L” range: 0 – 1 V
Is check result satisfactory?
Go to Step 12. Repair or replace.
12 1) Check IAC system referring to Step 3 or Step 4 of “Idle
Air Control Circuit Check”.
Is check result satisfactory?
Go to Step 13. Go to Step 4 of “Idle Air
Control Circuit Check”.
13 Was IAC duty more than about 30% (or less than 70% for
OFF duty meter) in Step 1? Check parts or system
which can cause engine
low idle. (Accessory
engine load, Clog of air
passage, etc.) Substitute a known-
good ECM and recheck.
Step Action Yes No
I2RH0B110076-01