Suzuki Swift User Manual page 104

INSPECTION
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Check TP Sensor and Its Circuit.
1) Turn ignition switch OFF and connect SUZUKI scan tool to
DLC.
2) Turn ignition switch ON and check TP sensor output
voltage when throttle valve is at idle position and fully
opened. See Fig. 1 and 2.
Dose voltage vary within specified value linearly as shown in
figure?
3 Check TP Sensor.
1) Turn ignition switch OFF.
2) Disconnect TP sensor connector.
3) Check for proper connection to TP sensor at each terminal.
4) If OK, then measure resistance between terminals and
check if each measured value is as specified below.
See Fig. 3.
Between 1 and 4: 2.87 – 5.33 kΩ
Between 1 and 3: 100 Ω – 20 kΩ, varying according to
Are measured values as specified?
Fig. 1 for Step 2
Fig. 3 for Step 3
"3" "4"
"1"
ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-53
ACTION
throttle valve opening.
Fig. 2 for Step 2
Closed
(condition "A")
YES
Go to Step 2.
If voltmeter was
used, check
terminal C01-6 for
poor connection.
If OK, substitute a
known-good ECM
(PCM) and
recheck.
High resistance in
"Lg", "Lg/W" or
"G" circuit.
If wire and
connection are
OK, substitute a
known-good ECM
(PCM) and
recheck.
Condition "A"
Clearance between throttle lever and
throttle stop screw is less than 0.35 mm
(0.014 in.).
Fully open
Throttle Opening
NO
Go to "ENGINE
DIAG. FLOW
TABLE".
Go to Step 3.
Replace TP
sensor.
clearance