1975 Datsun 280z FSM - Spooled up Racing

Body Electrical System
1. Disconnect lead wires at connectors.
2. Unscrew neutral switch from
transmission rear extension.
3. Installation is in the reverse sequence
of removal.
Inspection
Test continuity between two lead
wires with ohmmeter or test lamp.
When the plunger is projected,
there must be continuity between the
lead wires. Conversely, when the
plunger is pressed into switch body,
there must not be continuity.
BE814
INTERLOCK RELAY
Interlock relay is located on the
relay bracket in engine compartment.
This relay is attached to the bracket
with two screws.
Replacement
1. Open hood.
2. Remove four screws attaching
relay bracket to body panel, and remove
relay bracket.
3. Disconnect lead wires at a connector.
4. Remove two screws retaining
interlock relay. Relay can then be
taken out.
5. Installation is in the reverse sequence
of removal.
BE813
AT087
1 Manual plate 3 Parking rod
2 Inhibitor switch 4 Manual shaft
Fig. BE-155 Inhibitor switch {AIT)
Inspection
Test continuity through relay with
ohmmeter or test lamp. Continuity
should exist only between © -(4) and
(2)-©. When 12V direct current is
applied to (T) -(4), there must be
continuity between (§) -(5) instead of
(2) -(5). In checking continuity between
d)-(5), positive terminal must
be connected to (5) .
1 Neutral switch
2 Top gear switch
3 Buck-up switch BE639A
Fig. BE-154 Neutral switch
NEUTRAL SWITCH
(Automatic transmission)
Inhibitor switch is located on right
side of automatic transmission. Removal
and installation is described in
Section AT (Automatic transmission).
Inspection
Neutral switch is an integral part of
inhibitor switch. The harness for neutral
switch is a pair of BY (Blue with
Yellow stripe).
When the transmission lever is set in
the N position, there must be continuity
within BY harness.
BE659A
1 Condenser
2 Voltage regulator
3 Compressor relay
4 Relay bracket
5 Seat belt relay (A/T only)
6 Ignition interlock relay
7 Emergency switch
BE-94
BE603A
Fig. BE-156 Interlock relay