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Home >> Subaru >> 2016 >> WRX Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Security And Locks - Keyless Access (W-Push Button Start) (Diagnostics) >> Control Module I/O Signal >> Electrical Specification >> Id Code Box

Id Code Box

Fig 1: Identifying ID Code Box Connector Terminal
G08585637Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Terminal symbol Content
(B422) No. 1 +B +B
(B422) No. 2 LIN LIN communication
(B422) No. 4 IMO1 Immobilizer communication 1
(B422) No. 5 GND GND
NOTE: Disconnect the control module connector before checking the following items.
Terminal No. Standard Measuring condition Item
1 (+B) ←→ 5 (GND) 10 - 14 V Always Voltage
4 (IMO1) ←→ 5 (GND) 0 V Ignition OFF Voltage
5 (GND) ←→ Chassis ground Continuity exists Always Continuity
NOTE: Connect the control module connector before checking the following items.
Terminal No. Standard Measuring condition Item
4 (IMO1) ←→ 5 (GND) 0 V Ignition OFF Voltage
4 (IMO1) ←→ 5 (GND) Waveform 1 Ignition ON Voltage

Waveform 1

Fig 2: Keyless Access With Push Button Start System Waveform
G10219801Courtesy of SUBARU OF AMERICA, INC.
Item Content
Measured terminal 4 (IMO1) ←→ 5 (GND)
Equipment setting 5 V/DIV, 100 ms/DIV
Measuring condition Ignition ON
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