DTC B0073[12] Pretensioner(Rear Left) Circuit Short to Battery Voltage (Air Bag (Driver/Passenger/Side/Roof/Knee/Far Side))

1. SRS control unit schematic circuit diagram (Models with side airbags and curtain airbags)

2. SRS control unit outline view and connector pin layout (Models with side airbags and curtain airbags)

A connector

PIN No.	Pin function
1	Squib incorrect assembly identification terminal (*1)
2	Squib incorrect assembly identification terminal (*1)
3	Front airbag sensor Right (-) input
4	Deployment output to BCM
5	-
6	Driver airbag deployment current output (High)
7	Driver airbag deployment current output (Low)
8	Ground
9	Diagnostic request signal input
10	Batch deployment processing terminal (ACL)
11	Front airbag sensor Right (+) input
12	Front airbag sensor Left (+) input
13	ISO CAN (High)
14	ISO CAN (Low)
15	Ignition voltage input
16	Squib incorrect assembly identification terminal (*2)
	Driver knee airbag deployment current output (High)
17	Squib incorrect assembly identification terminal (*2)
	Driver knee airbag deployment current output (Low)
18	Passenger airbag deployment current output (High)
19	Passenger airbag deployment current output (Low)
20	Front airbag sensor Left (-) input
21	Connector mating check terminal
22	Connector mating check terminal
*1: Models without knee airbags *2: Models without far side airbags

B connector

PIN No.	Pin function
1	Driver curtain airbag deployment current output (Low)
2	Driver curtain airbag deployment current output (High)
3	Vehicle model identification terminal (*5)
4	Driver rear side airbag sensor (+) input
5	Driver rear side airbag sensor (-) input
6	Squib incorrect assembly identification terminal (*3)
	Rear right side pretensioner ignition current output (High)
7	Squib incorrect assembly identification terminal (*3)
	Rear right side pretensioner ignition current output (Low)
8	Front right side pretensioner ignition current output (Low)
9	Front right side pretensioner ignition current output (High)
10	Driver door side airbag sensor (+) input
11	Driver door side airbag sensor (-) input
12	Driver floor side airbag sensor (+) input
13	Squib incorrect assembly identification terminal (*4)
	Far side airbag deployment current output (Low)
14	Squib incorrect assembly identification terminal (*4)
	Far side airbag deployment current output (High)
15	Driver side airbag deployment current output (High)
16	Driver side airbag deployment current output (Low)
17	Passenger side SRS airbag cut off switch (-) input
18	Passenger side SRS airbag cut off switch (+) input
19	-
20	Driver floor side airbag sensor (-) input
21	-
22	-
23	Connector mating check terminal
24	Connector mating check terminal
*3: Extend cab models *4: Models without far side airbags and with knee airbags *5: Models without passenger side SRS airbag cut off switches

C connector

PIN No.	Pin function
1	Passenger curtain airbag deployment current output (Low)
2	Passenger curtain airbag deployment current output (High)
3	-
4	Passenger rear side airbag sensor (+) input
5	Passenger rear side airbag sensor (-) input
6	Rear left side pretensioner ignition current output (High)
7	Rear left side pretensioner ignition current output (Low)
8	Front left side pretensioner ignition current output (Low)
9	Front left side pretensioner ignition current output (High)
10	Passenger door side airbag sensor (+) input
11	Passenger door side airbag sensor (-) input
12	Passenger floor side airbag sensor (+) input
13	-
14	-
15	Passenger side airbag deployment current output (High)
16	Passenger side airbag deployment current output (Low)
17	Passenger side SRS airbag ON indicator light
18	Passenger side SRS airbag OFF indicator light
19	Deployment output to ERA-GLONASS control unit
20	Passenger floor side airbag sensor (-) input
21	-
22	-
23	Connector mating check terminal
24	Connector mating check terminal