Engine General Information and Diagnosis: 1A-52
DTC “C17” (P1750-H/L): IAP Sensor (No.2) Circuit Malfunction
B718H11104030
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
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.
Detected Condition Possible Cause
C17
IAP sensor (No.2) voltage is not within the
following range.
0.5 V ≤ Sensor voltage < 4.85 V
NOTE
Note that atmospheric pressure
varies depending on weather
conditions as well as altitude.
Take that into consideration
when inspecting voltage.
• Clogged vacuum passage.
• IAP sensor (No.2) circuit open or shorted to the ground.
• IAP sensor (No.2) malfunction.
• ECM malfunction.
P1750
H
Sensor voltage is higher than specified
value.
• IAP sensor (No.2) circuit is open or shorted to Vcc or
ground circuit open.
L
Sensor voltage is lower than specified
value.
• IAP sensor (No.2) circuit is shorted to the ground or Vcc
circuit open.
C17/P1750
When the sensor has unfastened (or
being unfastened) from the throttle body
or the pressure variation (voltage
variation) cannot be detected, this
malfunction code is output.
• Loosen the IAP sensor (No.2) mounting.
• IAP sensor (No.2) malfunction.
B/Br
G/B
R
ECM
Vcc
E2
IAP sensor (No.2)
IAP (No.2)
29
9
11
I718H1110179-04
I718H1110240-01
To Next Page
Loading...
Need help?
General
