Hyundai Santa Fe (2006 year). Manual — part 770
RT -122
RESTRAINTS
6)
Is the measured resistance within specification?
YES
▶ Go to next step.
NO
▶ Replace the PAD switch.
5.
CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
TROUBLESHOOTING
RT -123
DTC B1620 SUPPLEMENTAL RESTRAINT SYSTEM CONTROL MODULE
INTERNAL FAULT (REPLACE SRSCM)
DTC DESCRIPTION
E1635E15
The Supplemental Restraint System Control Module (SRSCM) runs diagnostics to monitor the condition of its internal
circuits and all external components in the restraint system. If a fault is detected in the electronic accelerometor or in the
microprocessor, the SRSCM will inhibit deployment to minimize the risk of inadvertent deployments.
Once an internal fault is qualified, the internal fault is latched and warning lamp will be turned on. If an internal fault is
qulified, the SRSCM must be replaced. The Hi-Scan tool can’t clear an internal fault. All internal faults are DTC B1620.
DTC DETECTING CONDITION
E3D215EF
DTC
Condition
Probable cause
B1620
• SRSCM internal fault :
acceleration sensor, microcomputer power
supply, watchdog etc
• SRSCM
INSPECTION PROCEDURE
EC7B75FE
If the above mentioned DTC is confirmed it can’t be cleared by Hi-Scan tool, the SRSCM should be replaced.
RT -124
RESTRAINTS
DTC B1650 CRASH RECORDED - FRONTAL (REPLACE SRSCM)
DTC B1651 CRASH RECORDED - DRIVER SIDE (REPLACE SRSCM)
DTC B1652 CRASH RECORDED - PASSENGER SIDE (REPLACE SRSCM)
DTC B1657 CRASH RECORDED - BELT PRETENSIONER ONLY
DTC B1658 BELT PRETENSIONER 6 TIMES DEPLOYMENT
(REPLACE SRSCM)
DTC DESCRIPTION
ECC9F31F
When a deployment of any restraint system for seat belt pretensioner and frontal and side air bags occurs, the crash
output is activated. The purpose of this output is to signal BCM (Body Control Module) in the vehicle to unlock the vehicle
doors. If a crash output is in progress, a second crash output signal will not be sent unless the first one is completed.
The SRSCM doesn’t perform diagnostics on the crash output function. After a frontal or side crash event is sensed and
algorithm makes firing decision, above mentioned crash record is stored after squib deployment.
DTC DETECTING CONDITION
E73A47D6
DTC
Condition
Probable cause
B1650
B1651
B1652
B1657
B1658
• Frontal crash
• Side crash
• Seat belt pretensioner only deployed
• SRSCM
• Front Impact Sensor
• Side Impact Sensor
• Seat Belt Pretensioner
SCHEMATIC DIAGRAM
E093E564
[HARNESS CONNECTOR]
Terminal
Connected to
Function
SRSCM 13(A)
BCM 10
Crash output
BCM
SRSCM
13(A)
10
SRSCM
CONNECTOR B
CONNECTOR A
Shorting Bar
BCM
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
3
14
15
16
12 11 10
8 7 6
4
24
22
23
21 20 19 18 17
13
25
26
SCMRT6190L
INSPECTION PROCEDURE
EFDF2513
If the above mentioned DTC is confirmed it can’t be cleared by Hi-Scan tool except for the B1657, and the SRSCM
should be replaced. However, for the DTC B1657, Belt pretensioner only deployment, it can be erased for 5 times and
the SRSCM can be reusable. If the deployment of Belt pretensioner reaches to 6 times, the SRSCM will set DTC B1658
and the SRSCM should be replaced accordingly.
TROUBLESHOOTING
RT -125
DTC B2500 SRS WARNING LAMP FAILURE
DTC DESCRIPTION
E94AAE61
The SRS warning lamp is located in the cluster. When the airbag system is normal, the SRS warning lamp turns on for
approx. 6 seconds after the ignition switch is turned to ON, and then turns off automatically. If there is a malfunction in
the airbag system, the SRS warning lamp lights up to inform the driver of the abnormality. The SRSCM shall measure
the voltage at the SRS warning lamp output pin, both when the lamp is on and when the lamp is off, to detect whether the
commanded state matches the actual state.
DTC DETECTING CONDITION
EDEB4A4B
DTC
Condition
Probable cause
B2500
• Airbag fuse
• Warning Lamp Bulb
• Open between warning lamp and SRSCM
• Short to ground or battery line between the
warning lamp and SRSCM
• SRSCM Malfunction
• Fuse
• Warning lamp bulb
• Wiring Harness
• SRSCM
SCHEMATIC DIAGRAM
E40E535F
[HARNESS CONNECTOR]
Terminal
Connected to
Function
4
IG1
Battery Voltage
5
SRSCM Terminal 1(A)
Lamp Control
SRSCM
Instrument Cluster
IG1
1(A)
4
INSTRUMENT CLUSTER
5
Bulb
[Instrument Cluster]
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
SCMRT6200L
TERMINAL & CONNECTOR INSPECTION
E7B1FDA3
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
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