Suzuki GRAND VITARA Owner's Manual page 21

b) Also, if measured values were as listed in the
following, it means that there is a resistance
(abnormality) of such level that corresponds to
the voltage drop in the circuit between terminals
"A-1" and "B-1".
Voltage between
"C-1" and body ground: Approx. 5 V
"B-1" and body ground: Approx. 5 V
"A-1" and body ground: Approx. 3 V
"A-1" and "B-1": 2V voltage drop
Short Circuit Check (Wire Harness to Ground)
1) Disconnect negative cable at battery.
2) Disconnect connectors at both ends of the circuit to
be checked.
NOTE
If the circuit to be checked is connected to
other parts (1), disconnect all connectors of
those parts.
Otherwise, diagnosis will be misled.
3) Measure resistance between terminal at one end of
circuit ("A-1" terminal in the figure) and body ground.
If continuity is indicated, it means that there is a short
to ground between terminals "A-1" and "C-1" of the
circuit.
4) Disconnect the connector included in circuit
(connector B) and measure resistance between "A-
1" and body ground.
If continuity is indicated, it means that the circuit is
I5RH01000005-01
shorted to the ground between terminals "A-1" and
"B-1".
Precautions:
I5RH01000006-01
1. To other parts
I2RH01010056-01
1. To other parts
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