13" (P0105-H/L) Iap Sensor Circuit Malfunction - Suzuki TU250X Service Manual

"13" (P0105-H/L) IAP SENSOR CIRCUIT MALFUNCTION

DETECTED CONDITION
13 IAP sensor voltage is not within the fol-
lowing range.
0.24 V
NOTE:
Note that atmospheric pressure varies
depending on weather conditions as
well as altitude.
Take that into consideration when
inspecting voltage.
P0105 Sensor voltage is higher than specified
H
value.
Sensor voltage is lower than specified
L
value.
IAP sensor

When using the multi circuit tester, do not strongly touch the terminal of the ECM coupler with
a needle-point probe to prevent the terminal damage or terminal bend.
INSPECTION
NOTE:
After repairing the trouble, clear the DTC using SDS tool.
(4-24)
Step 1 (When indicating 13:)
1) Turn the ignition switch OFF.
2) Check the IAP sensor coupler for loose or poor contacts.
If OK, then measure the IAP sensor input voltage.
Sensor voltage < 4.1 V
POSSIBLE CAUSE
• Clogged vacuum passage between throttle body
and IAP sensor.
• Air being drawn from vacuum passage between
throttle body and IAP sensor.
• IAP sensor circuit open or shorted to ground.
• IAP sensor malfunction.
• ECM malfunction.
• IAP sensor circuit shorted to VCC or ground cir-
cuit open.
• IAP sensor circuit shorted to ground or VCC cir-
cuit open.
W/Bl
B/Br
R
1
FI SYSTEM DIAGNOSIS 4-31
ECM
IAP
E2
VCC