Content .. 1456 1457 1458 1459 ..
Mitsubishi Galant 9G. Manual - part 1458
SRS AIR BAG DIAGNOSIS
TSB Revision
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-242
STEP 7. Check the SRS-ECU power supply circuit for short
circuit to ground. Measure the resistance at the junction
block connector C-211.
(1) Disconnect junction block connector C-211, and measure at
the wiring harness side.
CAUTION
Do not insert a test probe into the terminal from its front
side directly, as the connector contact pressure may be
weakened.
(2) Check for continuity between terminal 7 <DTC B1476> or
24 <DTC B1477> and body ground.
It should be open circuit.
Q: Does continuity exist?
YES : Check the other circuit, which flows through fuse
No.22 <DTC B1476> or fuse No.23 <DTC
B1477>.Then go to Step 10.
NO : Go to Step 8.
STEP 8. Check the power supply circuit for short circuit to
ground. Measure the resistance at the SRS-ECU connector
C-121.
(1) Disconnect SRS-ECU connector C-121, and measure at
the wiring harness side.
CAUTION
Do not insert a test probe into the terminal from its front
side directly as the connector contact pressure may be
weakened.
(2) Check for continuity between terminal 23 <DTC B1476> or
24 <DTC B1477> and body ground.
It should be open circuit.
Q: Does continuity exist?
YES : Go to Step 9.
NO : Erase the diagnostic trouble code memory, and check
the diagnostic trouble code. If DTC B1476 or B1477
sets, replace the SRS-ECU (Refer to
Then go to Step 10.
AC305415AN
CONNECTOR: C-211
AC308200
1 2 3 4 5 6 7 8 9 10 1112 1314
1516 1718 19 20 212223 242526 2728
C-211 HARNESS SIDE
CONNECTOR (REAR VIEW)
AB
AC305362
CONNECTOR: C-121
C-121 (Y)
AH
SRS-ECU
C-121
HARNESS SIDE
CONNECTOR
(REAR VIEW)
42
31
38
27
21
41
28
39
22
30
25
47
36
33
44
34
45
37
48
26
29
23
40
32
43
35
46
24
B
A
AC308195
42
31
38
27
21
41
28
39
22
30
25
47
36
33
44
34
45
37
48
26
29
23
40
32
43
35
46
24
B
A
C-121 HARNESS SIDE
CONNECTOR (REAR VIEW)
AB