Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual / Restraint / SRSCM / SRS Control Module (SRSCM)

Hyundai Santa Cruz: SRSCM / SRS Control Module (SRSCM)

- Description The primary purpose of the SRSCM (Supplemental Restraints System Control Module) is to discriminate between an event that warrants restraint system deployment and an event that does not. The SRSCM must decide whether to deploy the restraint system or not. After determining that pretensioners and/or airbag deployment is required, the SRSCM must supply sufficient power to the pretensioners and airbag igniters to initiate deployment.The SRSCM determines that an impact may require deployment of the pretensioners and airbags from data obtained from impact sensors and other components in conjunction with a safing function.The SRSCM will not be ready to detect a crash or to activate the restraint system devices until the signals in the SRSCM circuitry is stabilized. It is possible that the SRSCM could activate the safety restraint devices in approximately 2 seconds but is guaranteed to fully function after prove-out is completed.The SRSCM must perform a diagnostic routine and light a system readiness indicator when the ignition switch is in the ON position. The system must perform a continuous diagnostic routine and provide fault notice through a warning lamp indicator in the event of fault detection. A serial diagnostic communication interface will be used to facilitate servicing of the restraint control system. - Components Location

1. Supplemental Restraint System Control Module (SRSCM)

- Supplemental Restraint System Control Module (SRSCM)

No	Connector A	Connector B
1	Driver airbag #2 (High)	-
2	Driver airbag #2 (Low)	-
3	Passenger airbag #2 (Low)	-
4	Passenger airbag #2 (High)	-
5	-	-
6	-	-
7	-	-
8	-	Driver curtain airbag (Low)
9	-	Driver curtain airbag (High)
10	B+	Passenger curtain airbag (High)
11	Crash output	Passenger curtain airbag (Low)
12	Passenger airbag #1 (Low)	-
13	Passenger airbag #1 (High)	-
14	-	-
15	-	Passenger seat belt buckle sensor (High)
16	Passenger airbag OFF Lamp (Telltale)	Passenger seat belt buckle sensor (Low)
17	-	-
18	-	-
19	Driver airbag #1 (High)	Front driver anchor pretensioner (High)
20	Driver airbag #1 (Low)	Front driver anchor pretensioner (Low)
21	-	Front passenger side airbag (Low)
22	-	Front passenger side airbag (High)
23	-	Front driver side airbag (High)
24	-	Front driver side airbag (Low)
25	-	-
26	C-CAN (Low)	-
27	C-CAN (High)	Front driver retractor pretensioner (Low)
28	IGN 1	Front driver retractor pretensioner (High)
29	Driver front impact sensor (High)	-
30	Driver front impact sensor (Low)	-
31	Passenger front impact sensor (Low)	-
32	Passenger front impact sensor (High)	Front passenger retractor pretensioner (High)
33	-	Front passenger retractor pretensioner (Low)
34	-	-
35	-	-
36	-	-
37	-	-
38		-
39		-
40		Ground
41		Rear driver side impact sensor (Low)
42		Rear driver side impact sensor (High)
43		Driver pressure side impact sensor (High)
44		Driver pressure side impact sensor (Low)
45		Passenger pressure side impact sensor (Low)
46		Passenger pressure side impact sensor (High)
47		Front driver side impact sensor (High)
48		Front driver side impact sensor (Low)
49		Front passenger side impact sensor (Low)
50		Front passenger side impact sensor (High)
51		Rear passenger side impact sensor (High)
52		Rear passenger side impact sensor (Low)

- Removal

1.Disconnect the battery negative terminal.

• After disconnecting the cables, wait at least 3 minutes.

2.Remove the floor console assembly.(Refer to Body - "Floor Console Assembly")

3.Loosen the mounting nuts and remove the floor air duct (A).

4.Pull up the lock of the SRSCM connector to disconnect the connectors (A).

5.Remove the SRSCM mounting bolt and nuts, remove the SRSCM (A).

Tightening torque :7.8 - 9.5 N·m (0.8 - 1.0 kgf·m, 5.7 - 7.0 lb·ft)

- Installation

1.Install in the reverse of the removal.

2.After installing the SRSCM, confirm proper system operation.

• If the Switch ON the ignition, the SRS indicator light should turn on for about six seconds and then off.

- Variant Coding

1.Connect the cable of self-diagnosis to the data link connector in driver side crash pad lower panel, and turn on the self-diagnosis.

2.Select "Airbag" and "ACU Variant Coding".

3.Perform the "ACU/SRSCM Variant Coding" procedure according to the self-diagnosis screen message.

SRSCM

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Front Impact Sensor (FIS)

- Description • The front impact sensors (FIS) are installed on the upper of the side panel in Front End Module (FEM). They are remote sensors that detect acceleration due to a collision at ...

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