Crankshaft Position Sensor: Testing and Inspection

Crank Angle Sensor Schematic:

Cylinder Distinction Sensor Schematic:

A faulty crank angle sensor will set code 11 in the on-board diagnostic system and the cylinder distinction sensor will set code 13. Refer to the schematic diagrams and test these sensors with the diagnostic charts.

Wire color code identification:

L: Blue
B: Black
Y: Yellow
G: Green
R: Red
W: White
Br: Brown
Lg: Light green
Gr: Gray

Crank Angle Sensor Diagnostic Chart:

CRANK ANGLE SENSOR DIAGNOSTIC CHART

Cylinder Distinction Sensor Diagnostic Chart:

CYLINDER DISTINCTION SENSOR DIAGNOSTIC CHART

Crank Angle Sensor Testing:

CHECK CRANK ANGLE SENSOR

1. Disconnect connector from distributor.
2. Measure voltage between distributor side connector terminals while cranking engine:

Connector & terminal: Voltage: [1]
(F116)1-(F116)2 Varies with rpm

CHECK CYLINDER DISTINCTION SENSOR

1. Disconnect connector from distributor.
2. Measure voltage between distributor side connector terminals while cranking engine:

Connector & terminal: Voltage: [1]
(F116)3-(F116)4 Varies with rpm

[1] Measure with a high impedance voltmeter set below the 0.5V range.

ECU/Crank Angle Sensor Harness Testing:

CHECK HARNESS BETWEEN ECU AND DISTRIBUTOR

For crank angle sensor:

1. Disconnect ECU and distributor connectors.
2. Check resistance between ECU and distributor connectors and ground as follows:

Connector & terminal: Resistance:
(F119)3-(F119)1 Below 1 Ohm
(F119)4-(F119)2 Below 1 Ohm
(F119)3-Ground Infinite
(F119)4-Ground Infinite

3. Reconnect ECU connector and measure resistance between (F119)7 and ground. Resistance should be below 10 Ohms.

For cylinder distinction sensor:

1. Disconnect ECU and distributor connectors.
2. Check resistance between ECU and distributor connectors and ground as follows:

Connector & terminal: Resistance:
(F119)5-(F119)3 Below 1 Ohm
(F119)6-(F119)4 Below 1 Ohm
(F119)5-Ground Infinite
(F119)6-Ground Infinite

3. Reconnect ECU connector and measure resistance between (F119)7 and ground. Resistance should be below 10 Ohms.