Page 37 - Foton Workshop Manual - Sauvana

INTRODUCTION - HOW TO TROUBLESHOOT THE VEHICLE 01-31

2. Checkup of open circuits
(a). The circuit is shown as the fig. on the left.
Check the continuity and voltage in Step
(b) and Step (a) respectively to identify the 01
position of open circuit.

(b). Checkup of continuity.
• Disconnect the connector A and C, and
measure the resistance between them.
Resistance: ＜ 2Ω
NOTICE:
Shake the harness slightly in vertical and
horizontal directions and measure the resistance.
Take this circuit as an example:
If the resistance between connector A and
the No.1 pin of connector C is：≥ 1 MΩ
and the resistance between connector A
and the No.2 pin of connector C is: ＜ 2 Ω
It can be concluded that the open circuit is
between connector A and the No.1 pin of
connector C.

• Disconnect connector B and measure the
resistance between connectors.
Take this circuit as an example:
If the resistance between connector A and
the No.1 pin of connector B1 is: ＜ 2 Ω
and the resistance between connector B2
and the No.1 pin of connector C is: ≥ 1 MΩ
it can be concluded that the open circuit is
between connector B2 and the No.1 pin of
connector C.

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