Hyundai Santa Fe (2006 year). Manual — part 753
RT -54
RESTRAINTS
DTC B1346 DRIVER AIRBAG RESISTANCE TOO HIGH
DTC B1347 DRIVER AIRBAG RESISTANCE TOO LOW
DTC DESCRIPTION
EFB92994
The Driver Airbag circuit consists of the SRSCM, Clockspring and the Driver Airbag (DAB). The SRSCM sets above
DTC(s) if it detects that the resistance of DAB squib is too high or low.
DTC DETECTING CONDITION
E7B42F6E
DTC
Condition
Probable cause
B1346
B1347
• Too high or low resistance between DAB
high(+) and DAB low (-)
• Driver Airbag (DAB) Malfunction
• Clockspring Malfunction
• SRSCM Malfunction
• Open or short circuit on
wiring harness
• Driver Airbag (DAB) squib
• Clockspring
• SRSCM
SCHEMATIC DIAGRAM
E43B7579
[HARNESS CONNECTOR]
Terminal
1
2
Connected to
Function
SRSCM Terminal 6(A)
DAB Low
SRSCM
5(A)
High
6(A)
Low
DAB
1
2
Clockspring
DAB
SRSCM Terminal 5(A)
DAB High
CONNECTOR A
CONNECTOR B
Shorting Bar
2
1
SRSCM
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
30
29
28
27
26
25
24
23
22
21
40
39
38
37
36
35
34
33
32
31
6
5
4
3
2
1
12
11
10
9
8
7
18
17
16
15
14
13
24
23
22
21
20
19
SCMRT6120L
SPECIFICATION
E28BE0B8
DAB resistance : 1.4 ~ 6.2 Ω
TERMINAL & CONNECTOR INSPECTION
E66FD84C
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
TROUBLESHOOTING
RT -55
INSPECTION PROCEDURE
EBC88CD3
1.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
2.
CHECK DAB RESISTANCE
CAUTION
Never attempt to measure the circuit resistance of the airbag module(squib) even if you are using the speci-
fied tester.
1)
Connect the Dummy and the Dummy Adapter on DAB harness connector.
●Refer to "SPECIAL SERVICE TOOL" section in this SERVICE MANUAL for the SST No. of Dummy and
Dummy Adapter.
2)
Measure resistance between the terminal 5 and 6 of SRSCM harness connector(A).
Specification (resistance) : 1.4 ~ 6.2 Ω
Dummy
Adapter
SRSCM
LOCK
5(A)
6(A)
Dummy
2
1
Ω
SCMRT6121L
3)
Is the measured resistance within specification?
NO
▶ Check open circuit.
YES
▶ Replace the Driver Airbag(DAB) module.
3.
CHECK OPEN CIRCUIT
1)
Measure resistance between the terminal 1 of DAB harness connector and the terminal 5 of SRSCM harness
connector(A).
2)
Measure resistance between the terminal 2 of DAB harness connector and the terminal 6 of SRSCM harness
connector(A).
Specification (resistance) : below 1 Ω
RT -56
RESTRAINTS
DAB
LOCK
SRSCM
5(A)
2
6(A)
1
Ω
SCMRT6122L
3)
Is the measured resistance within specification?
YES
▶ Check short circuit.
NO
▶ Repair or replace the wiring harness between the DAB and the clockspring or between the clockspring and
the SRSCM.
4.
CHECK SHORT CIRCUIT
1)
Measure resistance between the terminal 1 and 2 of DAB harness connector.
Specification (resistance) : ∞ Ω
DAB
LOCK
SRSCM
5(A)
2
6(A)
1
Ω
SCMRT6123L
2)
Is the measured resistance within specification?
YES
▶ Go to next step.
NO
▶ Repair or replace the wiring harness between the DAB and the clockspring or between the clockspring and
the SRSCM.
5.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
TROUBLESHOOTING
RT -57
DTC B1348 DRIVER AIRBAG RESISTANCE CIRCUIT SHORT TO GROUND
DTC DESCRIPTION
E8857516
The Driver Airbag circuit consists of the SRSCM, Clockspring and the Driver Airbag (DAB). The SRSCM sets above
DTC(s) if it detects short to ground on the DAB circuit.
DTC DETECTING CONDITION
EDEAA31B
DTC
Condition
Probable cause
B1348
• Short to ground between DAB and clockspring
• Short to ground between clockspring and SRSCM
• Driver Airbag (DAB) Malfunction
• Clockspring Malfunction
• SRSCM Malfunction
• Short to ground circuit on
wiring harness
• Driver Airbag (DAB) squib
• Clockspring
• SRSCM
SCHEMATIC DIAGRAM
E7452174
[HARNESS CONNECTOR]
Terminal
1
2
Connected to
Function
SRSCM Terminal 6(A)
DAB Low
SRSCM
5(A)
High
6(A)
Low
DAB
1
2
Clockspring
DAB
SRSCM Terminal 5(A)
DAB High
CONNECTOR A
CONNECTOR B
Shorting Bar
2
1
SRSCM
10
9
8
7
6
5
4
3
2
1
20
19
18
17
16
15
14
13
12
11
30
29
28
27
26
25
24
23
22
21
40
39
38
37
36
35
34
33
32
31
6
5
4
3
2
1
12
11
10
9
8
7
18
17
16
15
14
13
24
23
22
21
20
19
SCMRT6120L
TERMINAL & CONNECTOR INSPECTION
EF24FC93
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
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