Suzuki GSF1250 - DTC C21 (P0110-H;L): IAT Sensor Circuit Malfunction

Engine General Information and Diagnosis: 1A-60
DTC “C21” (P0110-H/L): IAT Sensor Circuit Malfunction
B718H11104015
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.
NOTE
• After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-13)”.
• IAT sensor is incorporated in the IAP sensor/TP sensor.
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 the ground.
B/Br
Dg
ECM
IAT sensor
IAT
27
E2
29
I718H1110056-04
I718H1110240-01