Suzuki Jimny Service Manual page 465

6-108 ENGINE GENERAL INFORMATION AND DIAGNOSIS
INSPECTION
Step
1 Was "Engine Diag. Flow Table" performed?
2 Is SUZUKI scan tool available?
3 Check PNP signal ("D" range signal).
1) Connect SUZUKI scan tool to DLC with igni-
tion switch OFF. See Fig. 1.
2) Turn ignition switch ON and check PNP sig-
nal ("P/N" or "D" range) on display when
shifting selector lever to each range.
Is "D" range on display (Is 0 – 1 V indicated) no
matter which of "R", "D", "2" and "L" range posi-
tions selector lever may be at? See Table 1.
4 Check PNP Signal ("D" range signal).
1) Turn ignition switch ON.
2) Check voltage at terminal E17-6 of ECM
connector connected. See Fig. 2.
Is "D" range on display (Is 0 – 1 V indicated) no
matter which of "R", "D", "2" and "L" range posi-
tions selector lever may be at? See Table 1.
5 Is "P/N" range on display (Is 10 – 14 V indi-
cated) when selector lever is at one of "R", "D",
"2" and "L" range positions only?
6 Check PNP signal circuit.
1) Turn ignition switch OFF.
2) Disconnect TCM connectors.
3) Check for proper connection to TCM at ter-
minal E21-5.
4) If OK, then check voltage at terminal E21-8
in TCM connector disconnected, with igni-
tion switch ON. See Fig. 3
Is it 10 – 14 V?
[A] Fig. 1 for Step 3 / [B] Fig. 2 for Step 4 / [C] Fig. 3 for Step 6
Action Yes
Go to Step 2.
Go to Step 3.
Intermittent trouble or
faulty ECM. Check for
intermittent referring to
"Intermittent and Poor
Connection" in Section
0A.
Intermittent trouble or
faulty ECM. Check for
intermittent referring to
"Intermittent and Poor
Connection" in Section
0A.
Check transmission range
switch and circuits refer-
ring to Section 7B.
"Y/B" circuit open, poor
transmission range sen-
sor connector connec-
tion, select cable
maladjusted, transmis-
sion range sensor malad-
justed or transmission
range sensor malfunction.
If all above are OK, sub-
stitute a known-good TCM
and recheck.
No
Go to "Engine Diag. Flow
Table".
Go to Step 4.
Go to Step 5.
Go to Step 5.
Go to Step 6.
"G/Y" circuit open or poor
E17-6 connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.