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1A-53 Engine General Information and Diagnosis:
DTC “C23” (P1651-H/L): TO Sensor Circuit Malfunction
B831G21104016
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)”.
Detected Condition
Possible Cause
C23
The sensor voltage should be the
following for 2 sec. and more, after ignition
switch is turned ON.
0.2 V
≤
Sensor voltage < 4.8 V
• TO sensor circuit open or short.
• TO sensor malfunction.
• ECM malfunction.
P1651
H
Sensor voltage is higher than specified
value.
• TO sensor circuit open or shorted to VCC or ground
circuit open.
L
Sensor voltage is lower than specified
value.
• TO sensor circuit shorted to ground or VCC circuit open.
TO sensor
ECM
VCC
TO
E2
R
Br/W
B/Br
6
10
24
I831G1110054-01
I831G1110019-01
Summary of Contents for 2009 LT-A750XK9
Page 2: ......
Page 4: ......
Page 5: ...SUPPLEMENTS L LT A750XK9 09 MODEL 10 LT A750XPK9 09 MODEL 11 ...
Page 29: ...0A 15 General Information 99565 01010 013 CD ROM Ver 13 ...
Page 57: ...0B 28 Maintenance and Lubrication 09915 40610 Oil filter wrench Page 0B 12 Page 0B 12 ...
Page 68: ...0C 11 Service Data ...
Page 310: ...1K 5 Exhaust System ...
Page 482: ...4D 6 Parking Brake ...
Page 528: ...6B 13 Steering Handlebar ...
Page 581: ......