22 - 2
Starter Motor (cont’d)
Starting Circuit Test (cont'd)
Test 3b
If the reading between terminal
D
and earth is below 8.0V,
connect the voltmeter between terminal
E
and earth. An
increase in the reading to 8.0V indicates either a faulty start
relay or a fault in the feed from the transmission selector
switch to the relay solenoid. Check also the solenoid earth
connection.
If the reading between
E
and earth is less than 8.0V, the fault
must be in either the starter switch or in the wiring between
the solenoid, starter switch, and the start relay.
Test 4
Connect the voltmeter between battery negative and starter
earth connection
B
. The reading in the 'start' position should
be practically zero, maximum permissible reading 0.25V.
If the reading is above 0.25V, a high resistance in the earth
lead or connections is indicated.
Test 5
Connect the voltmeter between battery positive and the
starter main terminal
A
. With the starter switch ' off' , the
voltmeter should indicate battery voltage, but it should fall to
practically zero when the switch is turned to the ' on'
position, maximum permissible reading 0.25V.
Test 5a
If the reading is above 0.25V, a high resistance is present in
the insulated lead or in the solenoid. Connect the voltmeter
between the battery positive and solenoid connection
H
. If
the voltmeter now reads zero with the switch closed, the
fault is in the solenoid.
Finally refit the engine stop fuse.
Section C
9803/3280
Section C
22 - 2
Issue 1
Service Procedures
S151050
S151040
B
A
H