Suzuki WagonR+ RB310 Service Manual page 2036

D When connecting meter probe (2) from terminal side of cou-
pler (1) because it can't be connected from harness side, use
extra care not to bend male terminal of coupler of force its fe-
male terminal open for connection.
In case of such coupler as shown connect probe as shown
to avoid opening female terminal.
Never connect probe where (3) male terminal is supposed to
fit.
D When checking connection of terminals, check its male half
for bend and female half for excessive opening and both for
locking (looseness), corrosion, dust, etc.
D Before measuring voltage at each terminal, check to make
sure that battery voltage is 11V or higher. Such terminal volt-
age check at low battery voltage will lead to erroneous diag-
nosis.
ELECTRICAL CIRCUIT INSPECTION
PROCEDURE
While there are various electrical circuit inspection methods, de-
scribed here is a general method to check its open and short circuit
by using an ohmmeter and a voltmeter.
OPEN CIRCUIT CHECK
Possible causes for the open circuit are as follows. As the cause is
in the connector or terminal in many cases, they need to be checked
particularly carefully.
D Loose connection of connector
D Poor contact of terminal (due to dirt, corrosion or rust on it, poor
contact tension, entry of foreign object etc.)
D Wire harness being open
GENERAL INFORMATION 0A-11