Page 2626 - Foton Workshop Manual - Sauvana

62-574 DIAGNOSIS-ENGINE CONTROL SYSTEM

P0341，P0342，P0343，P0366，P0367，P0368 - PHASE

SENSOR FAULT

P0341-Unreasonable signal of inlet side phase sensor
P0342-Lower voltage of intake side phase sensor signal circuit
P0343-Higher voltage of intake side phase sensor signal circuit
P0366-Unreasonable signal of exhaust side phase sensor
P0367-Lower voltage of exhaust side phase sensor signal circuit
P0368-Higher voltage of exhaust side phase sensor signal circuit

General

1. ECUdetermines the top dead center information on the piston by the signal of speed
sensor, then determines the compression top dead center or exhaust top dead
center by the signal of phase sensor. Crankshaft turns two circles, and camshaft
turns one circle. The speed sensor has two signals and the phase sensor has a
signal , when the corresponding crankshaft turns two circles.
2. The phase sensor is used to identify the pause of air cylinder, and the speed sensor
is used to measure the variations of crankshaft revolving speed. When the changes
of crankshaft revolving speed exceeda predetermined threshold value, the number
of pause is calculated.

Circuit Diagram

Intake phase Exhaust phase
sensor E52 sensor E24

1 2 3 1 2 3

E06 3 8 4 Br L G

W

53 27 54 8
E01 E01 E01 E01
Intake Phase Exhaust Phase
phase sensor + phase sensor - Engine ECU
signal signal E01
C99

fuwx62033

Page 2626