FUEL SYSTEM (DFI) 3-65

Crankshaft Sensor (Service Code 21)

The crankshaft sensor has no power source, and when the engine stops, the crankshaft sensor generates no signals.

Crankshaft Sensor Removal/Installation

•Refer to the Crankshaft Sensor Removal/Installation in the Electrical System chapter.

Crankshaft Sensor Resistance Inspection

•Refer to the Crankshaft Sensor Inspection in the Electrical System chapter.

If the reading is within the standard, check the peak voltage (see Crankshaft Sensor Peak Voltage Inspection).

Crankshaft Sensor Peak Voltage Inspection

•Refer to the Crankshaft Sensor Peak Voltage Inspection in the Electrical System chapter.

If the reading is within the standard, remove the ECU and check the wiring for continuity between main harness connectors.

Special Tool - Hand Tester: 57001-1394

○Disconnect the ECU and sensor connectors.

Wiring Continuity Inspection

ECU Connector [A] ←→

Crankshaft Sensor Connector [B]

Y/BK lead (ECU terminal 31) [C]

BK/LG lead (ECU terminal 32) [D]

If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation).

3-66 FUEL SYSTEM (DFI)

Crankshaft Sensor (Service Code 21)

Crankshaft Sensor Circuit

1.Crankshaft Sensor

2.ECU