Suzuki Ignis Service Manual page 3291

6-90 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Step
2 Check TP sensor and its circuit.
1) Connect scan tool to DLC with ignition
switch turned OFF and then turn ON ignition
switch.
2) Check throttle valve opening percentage dis-
played on scan tool.
3) Check throttle valve opening percentage dis-
played on scan tool while opening throttle
valve from idle position to full open position.
Is it displayed 0%?
3 Check wire harness.
1) Disconnect connector from TP sensor with
ignition switch turned OFF.
2) Check for proper connection to TP sensor at
"GRY/RED", "GRY/BLU" and "ORN" wire
terminals.
3) If OK, then with ignition switch turned ON,
check voltage between "GRY/RED" wire ter-
minal of TP sensor connector and body
ground. See Fig. 1.
Is voltage about 4 – 6 V at each terminal?
4 Check ECM voltage.
1) Check for proper connection of ECM con-
nector at "C63-8" and "C63-34" wire termi-
nals.
2) If OK, disconnect connector from MAP sen-
sor.
3) Turn ON ignition switch, check voltage
between "C63-8" wire terminal of ECM con-
nector and body ground.
Is voltage about 4 – 6 V at each terminal?
5 Check wire circuit.
1) Disconnect connectors from ECM with igni-
tion switch turn OFF.
2) Check that there is insulation between
"GRY/RED" wire terminal of TP sensor con-
nector and body ground and between "GRY/
BLU" wire terminal of TP sensor connector
and body ground.
Is there insulation?
6 Check TP sensor.
1) Check resistance between terminals of TP
sensor. See Fig. 2.
TP sensor resistance
Between 1 and 3: 4.0 – 6.0 kΩ
Between 1 and 2: 0.1 – 6.5 kΩ
Are measured values within specifications?
Action Yes
Go to Step 3.
Go to Step 5.
Check MAP sensor
according to "MAP Sen-
sor Individual Check"
under "DTC P0108 Mani-
fold Absolute Pressure
High Input" in Section
6E1.
If they are OK, go to Step
5.
Go to Step 6.
Substitute a known-good
ECM and recheck.
No
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection" in
Section 0A.
Go to Step 4.
Go to Step 5.
"GRY/RED" and/or "GRY/
BLU" wire shorted to
ground circuit.
If wires are OK, substitute
a known-good ECM and
recheck.
Replace TP sensor.