C21" (P0110-H/L) Iat Sensor Circuit Malfunction - Suzuki GSX-R1000 2007 Service Manual

"C21" (P0110-H/L) IAT SENSOR CIRCUIT MALFUNCTION

DETECTED CONDITION
C21 Output voltage is not within the following
range.
0.15 V
P0110 Sensor voltage is higher than specified
H
value.
Sensor voltage is lower than specified
L
value.
IAT sensor
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.
INSPECTION
Step 1 (When indicating C21:)
1) Turn the ignition switch OFF.
2) Lift and support the fuel tank. ( 5-3)
3) Check the IAT sensor coupler
If OK, then measure the IAT sensor voltage at the wire side
coupler.
4) Disconnect the coupler and turn the ignition switch ON.
Sensor voltage < 4.85 V
for loose or poor contacts.
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
1
FI SYSTEM DIAGNOSIS 4-53
ECM
IAT
E2