Dtc "C21" (P0110-H/L): Iat Sensor Circuit Malfunction - Suzuki VLR1800 Service Manual

DTC "C21" (P0110-H/L): IAT Sensor Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
Output voltage is not with in the following
range.
C21
0.15 V ≤ Sensor voltage < 4.85 V
Sensor voltage is higher than specified
H
value.
P0110
Sensor voltage is lower than specified
L
value.
Wiring Diagram
IAT sensor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 18 18
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)".
ECM coupler (Harness side)
24 25 26 27 28 29 30 31 32 33 34
Engine General Information and Diagnosis:
Possible Cause
• IAT sensor circuit open or short.
• IAT sensor malfunction.
• ECM malfunction.
• IAT sensor circuit open or ground circuit open.
• IAT sensor circuit shorted to ground.
Dg
B/Br
35 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
52 52 52 53 54 55 56 57 58 59 60 61 62 63
1A-52
B822H11104015
ECM
27 IATS
29 E2
I823H1110038-03
64 65 66 67 68 68 68
I822H1110010-01