4-50 FI SYSTEM DIAGNOSIS
DTC “C23” (P1651-H/L): TO SENSOR CIRCUIT MALFUNCTION
DETECTED CONDITION AND POSSIBLE CAUSE
WIRING DIAGRAM
TROUBLESHOOTING
NOTE:
After repairing the trouble, clear the DTC using SDS tool. (
4-25)
DETECTED CONDITION
POSSIBLE CAUSE
C23
The sensor voltage should be the follow-
ing 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 signal circuit is open or ground circuit
open.
• TO sensor signal circuit is open or shorted to
ground or VCC circuit open.
L
Sensor voltage is lower than specified
value.
When using the multi circuit tester, do not strongly touch the terminal of the ECM coupler with
a needle-point tester probe to prevent terminal damage.
B/Br
R
ECM
VCC
E2
TO sensor
TOS
Br
15 16 17 18 19
22 23
20 21
24 25 26
2 3 4 5 6
9 10
7 8
11 12 13
27 28 29 30 31 32 33 34 35
36 37 38 39 40 41 42 43 44
1
14
ECM coupler (Harness side)
Содержание GW250
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