Engine General Information and Diagnosis: 1A-30
DTC “C13” (P1750-H/L) or “C17” (P0105-H/L): IAP Sensor Circuit Malfunction
B822H11104011
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Detected Condition Possible Cause
C13/C17
IAP sensor 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 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.
P1750/
P0105
H
Sensor voltage is higher than specified
value.
• IAP sensor circuit is open or shorted to VCC or ground
circuit open.
L
Sensor voltage is lower than specified
value.
• IAP sensor circuit is shorted to ground or VCC circuit
open.
ECM
R
B/Br
Bl/R
E229
26
11
9
IAP #2.
VCC
IAP sensor #2 (#2 cylinder)
IAP sensor #1 (#1 cylinder)
B/Br
G/B
R
IAP. #1
I822H1110015-03
1 2 3 4 5 6 7 8 9 10 11121314151617
18
18 19 20 21 22 23 26 2724 25 28 29 30 31 32 33 34
35
36
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
53 54 55 56 57 58 59 60 61 62 63 6764 65 66 68
6852
52
I822H1110010-01
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