17-46 SELF-DIAGNOSIS SYSTEM
Camshaft Position Sensor (Service Code 23)
The camshaft position sensor detects the position of the
camshaft, and distinguishes the cylinder.
The camshaft position sensor has no power source, and
when the engine stops, the camshaft position sensor gen-
erates no signals.
Camshaft Position Sensor Removal/Installation
Refer to the Camshaft Position Sensor Removal/Installa-
tion in the Electrical System chapter.
Camshaft Position Sensor Resistance Inspection
Refer to the Camshaft Position Sensor Inspection in the
Electrical System chapter.
If the reading is within the standard, check the peak volt-
age (see Camshaft Position Sensor Peak Voltage Inspec-
Camshaft Position Sensor Peak Voltage
Refer to the Camshaft Position Sensor Peak Voltage In-
spection in the Electrical System chapter.
If the reading is within the standard, remove the ECU and
check the wiring for continuity between main harness con-
Disconnect the ECU and sensor connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→
Camshaft Position Sensor Connector [B]
Y/R lead (ECU terminal 35) [C]
G lead (ECU terminal 38) [D]
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)