Scion 90919-05070 Sensor, Crank Position

The sensor is mounted on the timing chain cover next to the crankshaft pulley. To replace it, ensure the ignition key is in the Off position, then work under the vehicle to remove the inner fender shield. Disconnect the CKP sensor electrical connector, remove the bolt, and detach the sensor. Installation follows the reverse order of removal, and if reusing the old sensor, check the O-ring for damage and replace if necessary. For testing, disconnect the CKP sensor connector and use a digital volt/ohm meter set to measure resistance between the two terminals of the CKP sensor. With the engine cold (14 to 122 degrees-F), resistance should be between 1630 to 2740 ohms, and with the engine hot (122 to 212 degrees-F), it should be between 2065 to 3225 ohms. If the resistance value does not fall within the specified ranges for the appropriate temperature, the sensor should be replaced.

Start by disconnecting the cable from the negative battery terminal.

Raise and support the front of the vehicle with jackstands. Remove the CKP sensor mounting bolt and extract the sensor.

The first step is to disconnect the cable from the negative terminal of the auxiliary 12-volt battery and perform the initialization procedure when reconnecting it.