Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 548

<RS>
Dummy resistor
(MB991865)
Resistor harness
resistance (3Ω)
(MB991866)
Clock spring harness
side connector C- 204
<Check the circuit between the SRS-ECU and clock
spring>
Measure at the SRS-ECU connector C-21 and the clock
spring connector C-204.
D Disconnect the SRS-ECU connector C-21 and the clock
spring connector C-204 and measure at the harness side.
D Continuity check between the following terminals
Connector C-21
11 –
12 –
Caution
Do not directly insert a probe or other devices at the
front of the connector to avoid a possible decrease in
the contact pressure.
OK: Continuity (2Ω or less)
Connector C-204
Connector C-21
Replace the SRS-ECU.
SRS -
YES
Connector C-204
2
1
OK
Troubleshooting
<Clock spring check>
MUT-II self-diag code
D Release the clock spring connector (2- pin) C-204.
D Connect the dummy resistor (MB991865) to the resistor harness
(MB991866).
D Insert the resistor harness
(MB991866) behind the harness side connector C-204.
Caution
Do not directly insert a probe or other devices at the front of the
connector to avoid a possible decrease in the contact pressure.
D Connect the negative (- ) terminal of the battery
D Check the diagnosis code again after erasing the memory.
Is code No.22 output?
NO
Check the clock spring (Refer to P.52B-59.)
YES
Replace the driver's air bag module
(squib).
NG
Check connector: C-21, C-204
OK
Check the trouble
symptoms.
NG
Check the harness between the clock spring and the
SRS-ECU, and repair if necessary.
52B-17
NO
Replace the clock spring.
NG
Correct