Dtc "C17" (P1750-H/L): Iap Sensor (#2) Circuit Malfunction - Suzuki GSF650A Service Manual

DTC "C17" (P1750-H/L): IAP Sensor (#2) Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
IAP sensor 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
P1750 or the pressure variation (voltage
variation) cannot be detected, this
malfunction code is output.
Wiring Diagram
IAP sensor #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 between throttle body and
IAP sensor.
• IAP sensor circuit open or shorted to the ground.
• IAP sensor malfunction.
• ECM malfunction.
• IAP sensor circuit is open or shorted to Vcc or ground
circuit open.
• IAP sensor circuit is shorted to the ground or Vcc circuit
open.
• Loosen the IAP sensor.
• Clogged vacuum passage.
G/B
B/Br
R
ECM coupler (Harness side)
Possible Cause
ECM
9 IAP #2
29
E2
Vcc
11
1A-54
B817H21104014
I717H1110017-01
I718H1110240-01