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BE–64
1. Check of cowl wire harness
(1) Turn off the ignition switch and wait for 60 seconds.
(2) Remove the console panel. Disconnect the connector
at the vehicle wire harness side from the air bag ECU
connector.
(3) Turn on the ignition switch. Check to see if the warning
lamp goes on.
NOTE:
·
When there is open wire in the wire harness between
the warning lamp circuit inside the combination meter
and the ECU, the warning lamp remains illuminated.
(4) If the warning lamp will not go on in the condition (3), it
is likely that the harness of warning lamp is shorted.
Remove the combination meter and disconnect the
13–pin connector. Measure the resistance of harness
(cowl wire) across the terminal (B6) and body earth.
(5) If it might be shorted, replace the harness. Then turn
on the ignition switch. Check to see if the warning
lamp goes on.
2. Check of air bag warning lamp relay
If the air bag warning lamp will not go on in the condition
(5) above, it means the relay is malfunctioning. Replace
the relay.
When warning lamp will not go out:
If the warning lamp will not go out even if about six seconds
have elapsed after the ignition switch was turned on, malfunc-
tion is most likely taking place in the system. However, as for
the following items given below, the malfunction codes can not
be read by the reading procedure for the malfunction code al-
ready described before, and the warning lamp will remain illu-
minated. At this time, proceed to the following inspection.
1. Malfunction of power supply circuit of air bag ECU
(1) Turn off the ignition switch and wait for 60 seconds.
(2) Remove the console panel. Disconnect the connector
at the vehicle wire harness side from the air bag ECU.
(3) Set the range of the circuit tester to the voltmeter
mode. Connect the tester to the terminals of the con-
nector at the wire harness side.
(4) Switch on the ignition switch and take a reading of the
voltage.
NOTE:
·
If the specified voltage (12 V) is applied across the ter-
minal 17 or 18 and the terminal 10, the power supply
circuit is regarded as normal and proceed to the next
step.
·
If the specified voltage is not applied, check the wiring
route including the connector and fuse for open wire.
Combination meter 13-pin connector
(at wire harness side)
B12
B9
B8
B7
B6
B5
B13
B11
B10
Air bag ECU connector
(at wire harness side)
2
3
4
5 6 7 8
1
9
10 11 12
13
14
15
16 17 18
E1
Connector
Air bag ECU
JBE00212-05050
B4
B3
B2
B1
JBE00213-05051
JBE00214-05052
JBE00215-05053
IG1
IG2
JBE00216-05054
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