Hyundai Santa Fe (2006 year). Manual — part 751
RT -46
RESTRAINTS
DTC B1326 FRONT IMPACT SENSOR [DRIVER] SHORT TO GROUND
DTC B1331 FRONT IMPACT SENSOR [PASSENGER] SHORT TO GROUND
DTC DESCRIPTION
E5EE0DD3
The detecting system for front crash consists of the SRSCM and two Front Impact Sensors (FIS). The SRSCM sets above
DTC(s) if it detects short to ground on the FIS circuit.
DTC DETECTING CONDITION
ED0DA1A6
DTC
Condition
Probable cause
B1326
B1331
• Short to ground between FIS and SRSCM
• Front Impact Sensor(FIS) Malfunction
• SRSCM Malfunction
• Short to ground on Wiring Harness
• Front Impact Sensor(FIS)
• SRSCM
SCHEMATIC DIAGRAM
EE068E9D
SRSCM
16(A)
FIS [Driver]
High
15(A)
17(A)
FIS [Passenger]
High
18(A)
Low
Low
1
2
1
2
Terminal
Connected to
Terminal
Connected to
Function
Function
1
SRSCM Terminal 16(A)
FIS High
2
SRSCM Terminal 15(A)
FIS Low
FIS [Driver]
1
SRSCM Terminal 17(A)
FIS High
2
SRSCM Terminal 18(A)
FIS Low
FIS [Passenger]
[HARNESS CONNECTOR]
1
2
1
2
FIS[
Driver
]
FIS[
Passenger
]
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
CONNECTOR A
CONNECTOR B
Shorting bar
SCMRT6110L
TERMINAL & CONNECTOR INSPECTION
EB9AB00B
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
INSPECTION PROCEDURE
EBA9DD37
1.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
TROUBLESHOOTING
RT -47
2.
CHECK FIS CIRCUIT
1)
Measure resistance between the terminal 1 of FIS harness connector and chassis ground.
specification(resistance) : ∞ Ω
FIS
SRSCM
LOCK
15(18)A
2
16(17)A
1
Ω
LOCK
ERBF500R
2)
Is the measured resistance within specification?
YES
▶Check Front Impact Sensor.
NO
▶ Repair or replace the wiring harness between the FIS and the SRSCM.
3.
CHECK FRONT IMPACT SENSOR
1)
Replace the front impact sensor(FIS) with a new one.
● Refer to "Front Impact Sensor(FIS)" section in this SERVICE MANUAL.
2)
Install the DAB module and connect the DAB connector.
3)
Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
4)
Connect the SRSCM connector.
5)
Connect the battery negative cable to the battery.
6)
Connect a Hi-Scan(Pro) to the data link connector.
7)
Turn the ignition switch to ON and check the vehicle again.
Does Hi-Scan (Pro) indicate any DTC related to FIS?
YES
▶ Go to next step.
NO
▶ Replace the Front Impact Sensor(FIS).
4.
CLEAR THE DTC AND CHECK THE DTC AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
RT -48
RESTRAINTS
DTC B1327 FRONT IMPACT SENSOR [DRIVER] SHORT TO BATTERY
DTC B1332 FRONT IMPACT SENSOR [PASSENGER] SHORT TO BATTERY
DTC DESCRIPTION
ECF62D8B
The detecting system for front crash consists of the SRSCM and two Front Impact Sensors (FIS). The SRSCM sets above
DTC(s) if it detects short to battery on the FIS circuit.
DTC DETECTING CONDITION
EBBDEFA3
DTC
Condition
Probable cause
B1327
B1332
• Short to battery line between FIS and SRSCM
• Front Impact Sensor(FIS) Malfunction
• SRSCM Malfunction
• Short to battery line on Wiring
Harness
• Front Impact Sensor(FIS)
• SRSCM
SCHEMATIC DIAGRAM
EC734759
SRSCM
16(A)
FIS [Driver]
High
15(A)
17(A)
FIS [Passenger]
High
18(A)
Low
Low
1
2
1
2
Terminal
Connected to
Terminal
Connected to
Function
Function
1
SRSCM Terminal 16(A)
FIS High
2
SRSCM Terminal 15(A)
FIS Low
FIS [Driver]
1
SRSCM Terminal 17(A)
FIS High
2
SRSCM Terminal 18(A)
FIS Low
FIS [Passenger]
[HARNESS CONNECTOR]
1
2
1
2
FIS[
Driver
]
FIS[
Passenger
]
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
CONNECTOR A
CONNECTOR B
Shorting bar
SCMRT6110L
TERMINAL & CONNECTOR INSPECTION
E283653D
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
INSPECTION PROCEDURE
E29FB001
1.
PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
2.
CHECK FIS CIRCUIT
TROUBLESHOOTING
RT -49
1)
Connect the battery negative cable to the battery.
2)
Turn the ignition switch to ON.
3)
Measure voltage between the terminal 1 of FIS harness connector and chassis ground.
specification(voltage) : Approximately 0 V
FIS
SRSCM
LOCK
15(18)A
2
16(17)A
1
V
ON
ERBF500S
4)
Is the measured voltage within specification?
YES
▶ Check Front Impact Sensor.
NO
▶ Repair the short to battery line circuit on wiring harness between the FIS and the SRSCM.
3.
CHECK FRONT IMPACT SENSOR
1)
Replace the front impact sensor(FIS) with a new one.
● Refer to "Front Impact Sensor(FIS)" section in this SERVICE MANUAL.
2)
Install the DAB module and connect the DAB connector.
3)
Connect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
4)
Connect the SRSCM connector.
5)
Connect the battery negative cable to the battery.
6)
Connect a Hi-Scan(Pro) to the data link connector.
7)
Turn the ignition switch to ON and check the vehicle again.
Does Hi-Scan (Pro) indicate any DTC related to FIS?
YES
▶ Go to next step.
NO
▶ Replace the Front Impact Sensor(FIS).
4.
CLEAR THE DTC AND CHECK THE DTC AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING section. (See page RT - 36)
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