Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 540

Ignition switch (IG
SRS warning lamp
SRS-ECU harness
side connector
ON
OFF
Connector*
lock switch
ON
Short spring
OFF
NOTE
*:connector engaged:ON
connector disengaged:OFF
INSPECTION CHART FOR DIAGNOSIS CODES
Inspect according to the inspection chart that is appropriate for the malfunction code.
Code no. Diagnostic item
14 SRS-ECU front impact analog G-sensor system
15 SRS-ECU front impact safing G-sensor system
16 SRS-ECU front impact safing G-sensor system
1
21* Driver's air bag module (squib) system
1
22* Driver's air bag module (squib) system
1
24* Front passenger's air bag module (squib) system
1
25* Front passenger's air bag module (squib) system
1
26* Driver's seat belt pre-tensioner (squib) system
1
27* Driver's seat belt pre-tensioner (squib) system
1
28* Front passenger's seat belt pre-tensioner (squib) system
1
29* Front passenger's seat belt pre-tensioner (squib) system/
31 SRS-ECU DC-DC converter system
32 SRS-ECU DC-DC converter system
SRS -
Troubleshooting
WARNING LAMP CIRCUIT CONNECTOR LOCK SWITCH
)
1
Mechanism to automatically short-circuit the power supply
terminal and the earth terminal of the warning lamp circuit
when the SRS-ECU connector is disconnected. The structure
is the same as that of squib circuit connector lock switch.
Short circuit in the
sensor
Open circuit in the
sensor
Short circuit between
terminals of the squib
circuit
Open in the squib
circuit
Short circuit between
terminals of the squib
circuit
Open in the squib
circuit
Short circuit between
terminals of the squib
circuit
Open in the squib
circuit
Short circuit between
terminals of the squib
circuit
Open in the squib
circuit
Increased terminal
voltage
Decreased terminal
voltage
52B-9
Page
52B-11
52B-11
52B-12
52B-16
52B-20
52B-22
52B-23
52B-25
52B-26
52B-28
52B-11