DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1078

EXH TIM SEN/CIRC-B1

(Exhaust valve timing control position sensor circuit bank 1)

An excessively high or low voltage from the sensor is sent to ECM.

• Harness or connectors

  (Exhaust valve timing control position sensor circuit is open or shorted)

• Accumulation of debris to the signal pick-up portion of the camshaft
• Exhaust valve timing control position sensor
• Sensor power supply 2 circuit