• Check Short Circuit

• Continuity Check with Chassis Ground

If short to ground circuit occurs as shown in [Figure below], the broken point can be found by performing Step  2 (Continuity Check Method with Chassis Ground) as shown below.

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Specification (Resistance) 

1Ω or less → Short to Ground Circuit

1MΩ or Higher → Normal Circuit

1. Disconnect connectors (A), (C) and measure for resistance between connector (A) and Chassis Ground as shown in [Figure below].

   The measured resistance of line 1 and 2 in this example is below 1 Ω and higher than 1 MΩ respectively. Specifically the short to ground circuit is line 1 (Line 2 is normal). To find exact broken point, check the sub line of line 1 as described in the following step.

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2. Disconnect connector (B), and measure the resistance between connector (A) and chassis ground, and between (B1) and chassis ground as shown in [Figure below].

The measured resistance between connector (B1) and chassis ground is 1 Ω or less. The short to ground circuit is between terminal 1 of connector (C) and terminal 1 of connector (B1).

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