Page 2074 - Foton Workshop Manual - Sauvana

62-22 DIAGNOSIS-SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM (SRS)

B1400, B1401, B1402, B1409 AND B1414 - LEFT SIDE IMPACT

SENSOR CIRCUIT FAULT

Circuit diagram

Left side impact sensor
D61

1 2

5 6 D207
C307
R-O R-B

50 49
Left side Left side
impact impact
sensor+ sensor- SRS ECU
C27
fuwx62174

Symptom description:
A failure happens to driver side impact sensor system.
△ PROMPT:
Take driver side impact sensor as an example, check passenger side impact sensor with
the same method.

Diagnosis Procedure

1. Check battery voltage

(a). Unplug battery positive and negative binding post.

(b). Use a multimeter to measure the voltage
between the battery positive and negative
electrode.

Connect the pin by Standard value
multimeter

Battery positive
electrode - negative Approx 12V
electrode

Page 2074