Hyundai Santa Fe (2006 year). Manual — part 767
RT -110
RESTRAINTS
7)
Turn the ignition switch to ON and check the vehicle again.
Does Hi-Scan (Pro) indicate any DTC related to Curtain Airbag(CAB)?
YES
▶ Go to next step.
NO
▶ Replace CAB module.
4.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
TROUBLESHOOTING
RT -111
DTC B1527 PASSENGER AIRBAG DEACTIVATION SWITCH OPEN OR
SHORT TO BATTERY
DTC DESCRIPTION
E43745D9
The deactivation system for the passenger airbag consists of the SRSCM and the Passenger Airbag Deactivation(PAD)
switch. The above DTC is recorded when PAD switch open or short to battery is detected in the PAD circuit.
DTC DETECTING CONDITION
E9D133AD
DTC
Condition
Probable cause
B1527
• Short to battery line between PAD switch
and SRSCM
• SRSCM malfunction
• PAD switch malfunction
• PAD switch
• Wiring harness
• SRSCM
SCHEMATIC DIAGRAM
E304422C
[HARNESS CONNECTOR]
Terminal
Connected to
Function
1
SRSCM Terminal 19(A)
SRSCM Terminal 21(A)
PAD SW High
2
4
IG1
Battery Voltage
SRSCM
PAD
Switch
19(A)
21(A)
1
4
2
Low
High
IG1
[PAD Switch]
SRSCM
PAD SWITCH
CONNECTOR B
CONNECTOR A
Shorting Bar
PAD SW Low
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
4
ERBF501T
SPECIFICATION
EDC39A07
PAD Switch Status
Resistance (Ω )
Related DTC
Short to Battery
R > 1,114
B1527
ON (PAB Enabled)
728 ~ 1,567
Defect
502 ~ 1,024
B1529
OFF (PAB Disabled)
301 ~ 706
Short to Ground
R < 424
B1528
RT -112
RESTRAINTS
TERMINAL & CONNECTOR INSPECTION
E83AEDAD
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
INSPECTION PROCEDURE
E13F2133
1.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
2.
CHECK OPEN CIRCUIT
1)
Disconnect the connector of the PAD switch.
2)
Measure resistance between the terminal 19 of the SRSCM harness connector(A) and 1 of PAD switch harness
connector.
3)
Measure resistance between the terminal 21 of the SRSCM harness connector(A) and 2 of PAD switch harness
connector.
Specification (resistance) : below 1 Ω
PAD Switch
SRSCM
IG1
4
1
2
19(A)
21(A)
Ω
LOCK
ERBF500Z
4)
Is the measured resistance within specification?
YES
▶ Check short to battery line.
NO
▶ Replace the harness between the SRSCM and the PAD switch.
3.
CHECK SHORT TO BATTERY LINE
1)
Connect the battery negative cable to the battery.
2)
Turn the ignition switch to ON.
3)
Turn the ignition switch to LOCK, and wait for 30 seconds.
4)
Measure voltage between the terminal 1 of PAD switch harness connector and chassis ground.
Specification (voltage) : Approximately 0 V
TROUBLESHOOTING
RT -113
PAD Switch
SRSCM
IG1
4
1
2
19(A)
21(A)
V
ON
ERBF503A
5)
Is the measured voltage within specification?
YES
▶ Go to next step.
NO
▶ Repair or replace the wiring harness between the PAD switch and the SRSCM.
4.
CHECK THE PAD SWITCH
1)
Connect the SRSCM connector.
2)
Connect the PAD switch.
3)
Connect the battery negative cable to the battery.
4)
Turn the ignition switch to ON.
5)
Measure resistance between the terminal 19 of the SRSCM harness connector(A) and 1 of PAD switch harness
connector.
Specification (resistance :
PAD switch ON (Enabled positon) : 728 ~ 1,567 Ω
PAD switch OFF (Disabled positon) : 301 ~ 706 Ω
PAD Switch
SRSCM
IG1
4
1
2
21(A)
19(A)
ON
Ω
ERBF504B
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