Page 2278 - Foton Workshop Manual - Sauvana

62-226 DIAGNOSIS-HEATER & AIR CONDITIONING

Diagnosis Procedure

1. Check fuse

(a). Disconnect the battery negative cable.

(b). Check the fuse in fuse box within engine
housing:
Disconnect Normal
• F20(7.5A)
(c). Check the fuse in fuse box within house:
• F17(5A)
• F20(7.5A)
• F33(5A)
• F41(5A)
fuwx62605

Is the result normal?
Yes>To step 2.
No >Replace the fuse.

2. Check air condition compressor relay

(a). Disconnect the battery negative cable.
(b). Unplug the start-up tripping relay R04.

(c). Check the start-up tripping relay R04.
Standard resistance：

Connect by Specified
Conditions
multimeter value
Ordinary state 1-2 Existed

Apply the power
supply voltage
between the 3-4 ＜ 2Ω
No. 1 and No. 2
pin
Is the result normal?
Yes>To step 3.
No >Replace the air conditioning compressor relay to validate again whether this fault
exists or not.

Page 2278