Code EO41, Cam Sensor Circuit: Intermittents

If connections and harness are okay, connect a digital volt-ohmmeter (10-megohm) between ground and circuit No. 630 terminal at ECM. monitor DVOM while moving related connectors and wiring harness. Voltage reading will change if failure is induced. This may help isolate malfunction.

Fig 1: Code EO41, Schematic, Cam Sensor Circuit

NOTE: Ensure battery is fully charged. If code is intermittent, see Diagnostic Aids. If engine will not start, see NO START Diagnosis in BASIC TESTING article in this section.

Fig 2: Code EO41, Flow Chart, Cam Sensor Circuit