Dtc "C17" (P1750-H/L): Iap Sensor (No.2) Circuit Malfunction - Suzuki GSF1250 Service Manual

DTC "C17" (P1750-H/L): IAP Sensor (No.2) Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
IAP sensor (No.2) voltage is not within the
following range.
0.5 V ≤ Sensor voltage < 4.85 V
NOTE
Note that atmospheric pressure
C17
varies depending on weather
conditions as well as altitude.
Take that into consideration
when inspecting voltage.
Sensor voltage is higher than specified
H
value.
P1750
Sensor voltage is lower than specified
L
value.
When the sensor has unfastened (or
being unfastened) from the throttle body
C17/P1750 or the pressure variation (voltage
variation) cannot be detected, this
malfunction code is output.
Wiring Diagram
IAP sensor (No.2)
Troubleshooting
CAUTION
!
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle pointed tester probe to prevent the terminal damage or terminal bend.
Engine General Information and Diagnosis:
• Clogged vacuum passage.
• IAP sensor (No.2) circuit open or shorted to the ground.
• IAP sensor (No.2) malfunction.
• ECM malfunction.
• IAP sensor (No.2) circuit is open or shorted to Vcc or
ground circuit open.
• IAP sensor (No.2) circuit is shorted to the ground or Vcc
circuit open.
• Loosen the IAP sensor (No.2) mounting.
• IAP sensor (No.2) malfunction.
G/B
B/Br
R
ECM coupler (Harness side)
Possible Cause
ECM
9 IAP (No.2)
29
E2
Vcc
11
1A-52
B718H11104030
I718H1110179-04
I718H1110240-01