Engine General Information and Diagnosis: 1A-52
DTC “C21” (P0110-H/L): IAT Sensor Circuit Malfunction
B822H11104015
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 terminal damage.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-14)”.
Detected Condition
Possible Cause
C21
Output voltage is not with in the following
range.
0.15 V
≤
Sensor voltage < 4.85 V
• IAT sensor circuit open or short.
• IAT sensor malfunction.
• ECM malfunction.
P0110
H
Sensor voltage is higher than specified
value.
• IAT sensor circuit open or ground circuit open.
L
Sensor voltage is lower than specified
value.
• IAT sensor circuit shorted to ground.
ECM
B/Br
E2
IATS
Dg
IAT sensor
27
29
I823H1110038-03
1
2
3
4 5
6 7 8 9 10 11 12 13 14 15 16 17
18
18
18 19 20 21 22 23
26 27
24 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
67
64 65 66
68
68
68
52
52
52
I822H1110010-01
Содержание VLR1800
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