Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 551

52B-20
Code No.24 Front passenger's air bag module (squib)
system
This code is output when short circuit occurs between terminals of the
SRS-ECU front passenger's air bag (squib) circuit.
However, SRS warning lamp goes out when a normal operation is resumed
(diagnosis code is not cleared.)
NOTE:
*: The connector of the squib circuit contains a short bar (short-circuiting the positive (+) cable and the
negative ( - ) cable to avoid an erroneous deployment caused by static electricity when a connector is
not connected). Thus, when a connector is connected, the short bar may not be released due to improper
engagement of the connector or faulty connector as shown in the illustration below. Disconnect the connector
as shown in the illustration below, then reconnect it. Check that a diagnosis code is output again after
erasing the memory. If the diagnosis code is not output, the above-mentioned code is output due to
improper engagement of the connector.
SRS -
C-21
SRS-ECU
Troubleshooting
Possible Cause
D Connector engagement faulty or short bar faulty*
D Short circuit between terminals of the front
passenger's air bag (squib) circuit
D Faulty connector
D SRS-ECU inoperable
C-109
Front passenger's air bag module