Mitsubishi 3000GT 1991, Service Manual

Page: 1020 / 1146

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
FIT VERIFICATION MECHANISM
Secondary
lock lever
The mechanism electrically verifies that the connectors of the
SRS diagnosis unit have been fitted. The operating principle is
described below.
Securely connect the SRS diagnosis and harness side
connectors and press the secondary lock lever down to lock
the connectors.
iarness side connector
Short bar
Press-fitted tab terminals
Short
plate
Short terminal
I
(2) At the time, the short bar provided on the rear of the
secondary lock lever shorts the associated two pole
terminals of the SRS diagnosis unit. The SRS diagnosis unit
supplies monitoring current to the circuit to electrically
verify that the connectors have been locked.
CONNECTOR SHORTING MECHANISM
The mechanism is designed for prevention of accidental
explosion of the inflator when the clock spring connector (for
the squib circuit) is removed from the SRS diagnosis unit. The
operating principle is described below.
When Connectors Are Fitted
When the SRS diagnosis unit and clock spring connectors are
coupled, the circuit between the short terminals and clock
spring connector terminals are kept in the OFF state by the
partition plate provided in the connector of the SRS diagnosis
unit.
When Connectors Disconnected
When the clock spring connectors are disconnected from the
SRS diagnosis unit, the partition plate between the short
terminals and clock spring connector terminals is removed. As
a result, a short circuit is formed between the two poles of the
clock spring connector terminals to prevent generation of a
potential difference (current) between the squib terminals.
Revision
1