Page 260 - Foton Workshop Manual - Aumark (BJ1099)

11-34 ENGINE CONTROL SYSTEM - KNOCK SENSOR

OVERHAUL

1. CHECK KNOCK SENSOR
(a). Disconnect the socket connector of the
knock sensor.

1 2 (b). Check the resistance between the No.1
and No.2 pins of the knock sensor with the

Ω digital multimeter.
Resistance: ＞ 1MΩ
(c). Switch the digital multimeter to mv range,
knock slightly on the place near the knock
sensor with a little hammer, and at this
time, the voltage signal should be output.
NOTICE:
fuwx11013 •While checking, check the voltage or resistance
besides the sensor element with digital
multimeter.
•If the checkup is not in conformity with
regulations, it means that the knock sensor is
damaged and should be replaced.

Page 260