Page 369 - Foton Workshop Manual - Auman EST-M

Diagnosis - Diagnosis-fault diagnosis of electronic and electrical parts DI - 315

Diagnosis procedure IN
1. Check the circuit from vehicle speed sensor to combination instrument.

a. Ignition switch: LOCK. DI
b. Respectively disconnect the combination instrument connectors B015 and B014 and vehicle speed sensor
connector F015. EG

c. Use a multimeter to respectively measure the resistance of
20# terminals of combination instrument connector B015 TR
and 10# terminals of vehicle speed sensor connector F015.

Standard resistance:
AX
Multimeter connecting terminal Standard value

B015(B20)-F015(10) About 0Ω FR

ST
d. Use a multimeter to respectively measure the resistance

of 13# and 24# terminals of combination instrument
BR
connector B014 and 12# and 11# terminals of vehicle speed
sensor connector F015.
Standard resistance: BW

Multimeter connecting terminal Standard value
EL
B014(13)-F022(12) About 0Ω

B014(24)-F022(11) About 0Ω

Check if the result is ok?

Yes>go to Step 2.
NO>repair or replace the harness.
2. Check the vehicle speed sensor

a. Ignition switch: LOCK.
b. Disconnect the vehicle speed sensor connector F022.

c. Use a multimeter to measure the conductivity among 10#,
11# and 12# terminals of vehicle speed sensor.
Standard resistance:

Multimeter connecting terminal Standard value

F015(10)-F015(12) Conduction

F015(11)-F015(12) Conduction

DI-315