Page 2070 - Foton Workshop Manual - Sauvana

62-18 DIAGNOSIS-SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM (SRS)

B1708, B1709 AND B1529 - PERSONAL DETECTION DEVICE

CIRCUIT FAULT

Circuit diagram

SRS ECU
C27
Passenger detection
40

B-R

C301
37
D20 1
1

Seat weight sensor
D08

2

B

D13 fuwx62173

Symptom description:
A failure happens to passenger detection device system, no signal transmission.

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.
Standard voltage:

Connect the pin by Standard value
multimeter

Battery positive
electrode - negative Approx 12V
electrode

Page 2070