Hyundai Santa Fe (2006 year). Manual — part 771
RT -126
RESTRAINTS
INSPECTION PROCEDURE
EDF952B4
1.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
2.
CHECK THE FUSE
1)
Remove the airbag fuse and the airbag warning lamp fuse from junction box.
2)
Inspect the fuses. Are the fuses normal?
YES
▶ Check the warning lamp bulb.
NO
▶ Repair or replace the fuses.
3.
CHECK THE WARNING LAMP BULB
1)
Remove the bulb from the instrument cluster.
2)
Inspect the bulb. Is the bulb normal?
YES
▶Check source voltage.
NO
▶ Repair or replace the bulb.
4.
CHECK SOURCE VOLTAGE
1)
Connect the battery negative cable to the battery.
2)
Turn the ignition switch to ON.
3)
Measure voltage between the terminal 2 of the Instrument Cluster harness connector and chassis ground.
Specification (voltage) : 8.38 ~ 17.0 V
Warning
Lamp
SRSCM
ON
1(A)
5
4
IG1
V
SCMRT6201L
4)
Is the measured voltage within specification?
TROUBLESHOOTING
RT -127
YES
▶Check short to battery line.
NO
▶Repair or replace the wiring harness between ignition switch and the Warning Lamp.
5.
CHECK SHORT TO BATTERY LINE
1)
Measure voltage between the terminal 5 of the Instrument Cluster harness connector and chassis ground.
Specification (voltage) : Approximately 0 V
Warning
Lamp
SRSCM
ON
1(A)
5
4
IG1
V
SCMRT6202L
2)
Is the measured voltage within specification?
YES
▶ Check short or short to ground.
NO
▶ Repair the short to battery line circuit on wiring harness between the SRSCM and the Warning Lamp.
6.
CHECK SHORT OR SHORT TO GROUND
1)
Turn the ignition switch to LOCK.
2)
Disconnect the battery negative cable from the battery.
3)
Measure resistance between the terminal 5 of the Instrument Cluster harness connector and chassis ground.
4)
Measure resistance between the terminal 4 and 5 of the Instrument Cluster harness connector.
Specification (resistance) : infinite
RT -128
RESTRAINTS
Warning
Lamp
SRSCM
LOCK
1(A)
5
4
IG1
Ω
Ω
SCMRT6203L
5)
Is the measured resistance within specification?
YES
▶Check open circuit.
NO
▶ Repair the short or short to ground circuit on wiring harness between the SRSCM and the Warning Lamp.
7.
CHECK OPEN CIRCUIT
1)
Measure resistance between the terminal 5 of the Instrument Cluster connector and the terminal 1 of SRSCM
harness connector(A).
Specification (resistance) : below 1 Ω
Warning
Lamp
SRSCM
LOCK
1(A)
5
4
IG1
Ω
SCMRT6204L
2)
Is the measured resistance within specification?
YES
▶ Go to next step.
NO
▶ Repair the open circuit on wiring harness between the SRSCM and the Warning Lamp.
8.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
TROUBLESHOOTING
RT -129
DTC B2505 PASSENGER AIRBAG DISABLE LAMP FAILURE
DTC DESCRIPTION
EB37F5CA
The SRSCM shall detect and record the following situations. And a single fault code shall be assigned as PAD Lamp Fault
for all PAD lamp fault conditions. This fault code shall be set whenever either of the fault conditions is detected. If both
fault conditions are not detected, the fault code shall not be detected.
1.
The bulb is short, or there is a short to battery condition on the PAD lamp input connection to the SRSCM. This
condition is only detectable while the PAD lamp is commanded ON. If a short to battery condition is detected, the
PAD lamp shall be commanded OFF for 15 seconds to protect the circuit.
2.
The bulb is open, or there is a short to ground condition. This condition is only detectable while the PAD lamp is
commanded OFF. If the PAD lamp is ON and a short to ground condition is present, the SRSCM shall command the
PAD lamp OFF for a maximum of 1ms during each diagnostic cycle.
DTC DETECTING CONDITION
EE99B95B
DTC
Condition
Probable cause
B2505
• PAD lamp bulb open or short
• Open between PAD lamp and SRSCM
• Short to ground or battery line between
PAD lamp and SRSCM
• SRSCM malfunction
• Fuse
• PAD lamp bulb
• Wiring Harness
• SRSCM
SCHEMATIC DIAGRAM
E4BC358D
[HARNESS CONNECTOR]
Terminal
Connected to
Function
4
IG1
Battery Voltage
3
SRSCM Terminal 23(A)
Lamp Control
SRSCM
Instrument Cluster
[Instrument Cluster]
IG1
23(A)
4
INSTRUMENT CLUSTER
3
Bulb
SRSCM
CONNECTOR A
CONNECTOR B
Shorting Bar
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
1
2
3
4
5
6
7
9
8
10
11
12
SCMRT6210L
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