Suzuki Wagon R Manual page 1141

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.
2) Check throttle valve opening percentage
displayed on scan tool. See Fig. 1.
Is it displayed 2% or less?
3) Check throttle valve opening percentage
displayed on scan tool while opening
throttle valve from idle position to full open
position. See Fig. 1.
Is it displayed 96% or higher?
3 Check Wire Harness.
1) Disconnect connector from TP sensor
with ignition switch OFF.
2) Check for proper connection to TP sensor
at "WHT/GRN", "GRY" and "BRN/WHT"
wire terminals.
3) If OK, then with ignition switch ON, check
voltage at each of "WHT/GRN" and
"GRY" wire terminals. 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.
Between 1 and 4: 2.87 – 5.33 kΩ
Between 1 and 3: 100 Ω – 20 kΩ, varying
according to throttle valve opening.
Are measured values within specifications?
Fig. 1 for Step 2
Scan tool
ACTION
Fig. 2 for Step 3
GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-49
YES
Go to Step 2.
Go to Step 3.
Go to Step 4.
"BRN/WHT" wire open or
poor E23-9 connection.
If wire and connection are
OK, substitute a known-
good ECM (PCM) and
recheck.
Fig. 3 for Step 4
"1"
NO
Go to "ENGINE DIAG.
FLOW TABLE".
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection" in
Section 0 A.
"WHT /GRN" wire open,
"WHT /GRN" wire shorted
to ground circuit or power
circuit or "BRN/WHT"
wire, "GRY" wire open or
shorted to ground circuit or
poor E23-1 or E23-6
connection.
If wire and connection are
OK, substitute a known-
good ECM (PCM) and
recheck.
Replace TP sensor.
"3" "4"