Suzuki Jimny Service Manual page 413

6-56 ENGINE GENERAL INFORMATION AND DIAGNOSIS
INSPECTION
Step
1 Was "Engine Diag. Flow Table" performed?
2 Check TP Sensor and Its Circuit.
1) Connect scan tool to DLC with ignition
switch OFF and then turn ignition switch ON.
See Fig. 1.
2) Check throttle valve opening percentage dis-
played on scan tool.
Is it displayed 0% or 100%?
3 Check Wire Harness.
1) Disconnect connector from TP sensor with
ignition switch OFF.
2) Check for proper connection to TP sensor at
"Lg/R", "Lg" and "B/Bl" wire terminal.
3) If OK, then with ignition switch ON, check
voltage at each of "Lg/R" and "Lg" wire ter-
minals and body ground. See Fig. 2.
Is voltage about 4 – 6 V at each terminal?
4 Check TP Sensor.
1) Check resistance between terminals of TP
sensor. See Fig. 3.
TP sensor resistance
Between 1 and 3 : 4.0 – 6.0 kΩ Ω Ω Ω
Between 2 and 3 : Varying according to
throttle valve opening (0.02 – 6.0 kΩ Ω Ω Ω )
Are measured values within specifications?
[A] Fig. 1 for Step 2 / [B] Fig. 2 for Step 3 / [C] Fig. 3 for Step 4
Action Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
"B/Bl" wire open or poor
E19-10 connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.
No
Go to "Engine Diag. Flow
Table".
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection" in
Section 0A.
"Lg/R" wire open, "Lg/R"
wire shorted to ground cir-
cuit or power circuit or
"B/Bl" wire, "Lg" wire open
or shorted to ground cir-
cuit or poor E19-22 or
E19-16 connection.
If wire and connection are
OK, substitute a known-
good ECM and recheck.
Replace TP sensor.