Dtc "C23" (P1651-H/L): To Sensor Circuit Malfunction - Suzuki AN400 Service Manual

DTC "C23" (P1651-H/L): TO Sensor Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
The sensor voltage should be the following for 2 sec. and
more, after ignition switch is turned ON.
0.17 V ≤ Sensor voltage < 4.70 V
NOTE
• If SDS is used, P1651-H is indicated when
sensor voltage is higher than specified
value.
• If SDS is used, P1651-L is indicated when
sensor voltage is lower than specified
value.
Wiring Diagram
TO sensor
Engine General Information and Diagnosis:
Possible Cause
• TO sensor circuit open or short
• TO sensor malfunction
• ECM malfunction
NOTE
• When P1651-H is displayed, it is possible that
TO sensor circuit is shorted to Vcc or ground
circuit is open.
• When P1651-L is displayed, it is possible that
TO sensor circuit is open or shorted to
ground or Vcc circuit is open.
R
Br/W
B/Br
1A-42
B705H11104023
ECM
(14) Vcc
(2) TOS
(4) E2
I705H1110028-03