Toyota 1 MZ–FE Manual page 509

EG2–509
1MZ–FE ENGINE – CIRCUIT INSPECTION
DIAGNOSTIC CHART
Check resistance of camshaft position sensor.
Replace sensor.
Check for open and short in harness and connector
Repair or replace harness or connector.
between ECM and camshaft position sensor.
Tighten the sensor.
Inspect sensor installation.
Check and replace ECM.
WIRING DIAGRAM