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(3) Disconnect the connector of the steering pad assem-
bly from the roll connector. Also disconnect the con-
nector for the horn.
WARNING:
·
When storing the steering pad assembly (air bag unit),
be sure to place it with the pad surface facing upward
on a flat place which is not exposed to direct sun rays.
Also the storing place shall be away from water and
rain.
(4) Remove the console panel. Disconnect the connector
at the vehicle wire harness side from the air bag ECU.
(5) Using a wooden or plastic piece, raise the short circuit
bridge at the sections 6 and 7 of the connector at the
vehicle wire harness side which was removed from the
ECU. In this way, disconnect the shorted contact
points.
(6) With the circuit tester set to the ohmmeter mode, con-
nect the tester to the roll connector terminal. Check to
see if any short circuit exists in the circuits from the air
bag ECU to the roll connector via the wire harness.
Between terminal F2 (+) and G2 (–):
No continuity exists.
(7) If the wiring harness is shorted, it is necessary to know
whether the faulty point is attributable to the inside of
the roll connector. To this end, disconnect the coupling
connector of the roll connector and the wire cowl.
Then, perform check with a circuit tester as was de-
scribed in Item (6) above.
Between terminal F1 (+) and G1 (–):
No continuity exists.
Between terminal f1 (+) and g1 (–):
No continuity exists.
If a short circuit is found, replace the faulty part with a
new one.
NOTE:
·
At this time, turn the steering wheel in a right-and-left
direction and ensure that there is no change in the indi-
cation of the circuit tester.
GOOD
D–
D+
6
7
Air bag ECU
Steering roll
connector
D+
7
7
F1
f1
g1
D–
6
G1
6
Cowl wire
Cowl wire
D+
7
7
F1
D–
6
6
G1
Air bag
ECU
BE–73
JBE00249-05087
Wooden or
plastic piece
Short circuit
bridge
JBE00250-05088
F2
G2
JBE00251-05089
Steering roll
connector
f1
F2
G2
g1
JBE00252-05090
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