LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2019 >> Impreza Base, 4D Sedan, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 96 (P-HEV Hybrid Powertrain Control System (Diagnostics - Introduction)) >> Control Module I/O Signal >> Electrical Specification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Electrical Specification

WARNING: This page is about a different car, the 2019 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
G13237884Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Contents Input/Output Measuring condition Standard (V)
(B605) No. 1 - - - -
(B605) No. 2 (E01) Power GND - - -
(B605) No. 3 - - - -
(B605) No. 4 - - - -
(B605) No. 5 (R) ←→ (i369) No. 6 (E1) Shift R position Input IG ON, shift lever in R position 7.5 - 14
IG ON, shift lever in other than R position 0 - 1.5
(B605) No. 6 - - 1-  
(B605) No. 7 (PNB) ←→ (i369) No. 6 (E1) Shift PNB position Input IG ON, shift lever in P position or N position 7.5 - 14
(B605) No. 8 - - - -
(B605) No. 9 - - - -
(B605) No. 10 - - - -
(B605) No. 11 - - - -
(B605) No. 12 (LIN3) ←→ (i369) No. 6 (E1) LIN communication (A/C inverter, Battery (12V) sensor communication) Input/Output READY ON Pulse generation
(B605) No. 13 - - - -
(B605) No. 14 (DB1) ←→ (i369) No. 6 (E1) Shift DB1 position Input IG ON, shift lever in D position or S position 7.5 - 14
IG ON, shift lever in other than D position and S position 0 -1.5
(B605) No. 15 (PR) ←→ (i369) No. 6 (E1) Shift PR position Input IG ON, shift lever in P position or R position 7.5 - 14
IG ON, shift lever in other than P position and R position 0 -1.5
(B605) No. 16 (DB2) ←→ (i369) No. 6 (E1) Shift DB2 position Input IG ON, shift lever in D position or S position 7.5 - 14
IG ON, shift lever in other than D position and S position 0 -1.5
(B605) No. 17 (P) ←→ (i369) No. 6 (E1) Shift P position Input IG ON, shift lever in P position 7.5 - 14
IG ON, shift lever in other than P position 0 -1.5
(B605) No. 18 (EPA) Accelerator pedal position sensor main GND - - -
(B605) No. 19 (VCPA) ←→ (B605) No. 18 (EPA) Accelerator pedal position sensor main power supply (for VPA) Output IG ON 4.5 - 5.5
(B605) No. 20 (VPA2) ←→ (B605) No. 29 (EPA2) Accelerator pedal position sensor (for sensor malfunction detection) Input IG ON, accelerator pedal not depressed 1.0 - 2.2
With IG ON, in P position and Engine always stopped, accelerator pedal depressed to the floor 3.4 - 5.3
(B605) No. 21 (DRN2) GND for shield - - -
(B605) No. 22 (ETTA) Transaxle temperature sensor GND      
(B605) No. 23 (TTA) ←→ (B605) No. 22 (ETTA) Transaxle temperature sensor Input IG ON, see data monitor (25°C (77°F)) 3.6 - 4.6
IG ON, see data monitor (60°C (140°F)) 2.2 - 3.2
(B605) No. 24 (N) ←→ (i369) No. 6 (E1) Shift N position Input IG ON, shift lever in N position 7.5 - 14
IG ON, shift lever in other than N position 0 -1.5
(B605) No. 25 - - - -
(B605) No. 26 - - - -
(B605) No. 27 - - - -
(B605) No. 28 (VPA) ←→ (B605) No. 18 (EPA) Accelerator pedal position sensor (for accelerator pedal opening angle detection) Input IG ON, accelerator pedal not depressed 0.4 - 1.4
With IG ON, in P position and Engine always stopped, accelerator pedal depressed to the floor 2.6 - 4.5
(B605) No. 29 (EPA2) Accelerator pedal position sensor sub GND - - -
(B605) No. 30 (VCP2) ←→ (B605) No. 29 (EPA2) Accelerator pedal position sensor sub power supply (for VPA2) Output IG ON 4.5 - 5.5
(B605) No. 31 - - - -
(B605) No. 32 - - - -
(B605) No. 33 - - - -
(B605) No. 34 - - - -
(B606) No. 1 (MREL) Main relay output ←→ (i369) No. 6 (E1) Output IG ON 11 - 14
(B606) No. 2 (IG2) ←→ (i369) No. 6 (E1) Power supply Input IG ON 11 - 14
(B606) No. 3 - - - -
(B606) No. 4 - - - -
(B606) No. 5 - - - -
(B606) No. 6 - - - -
(B606) No. 7 - - - -
(B606) No. 8 - - - -
(B606) No. 9 (IWP) ←→ (i369) No. 6 (E1) Inverter water pump signal Output READY ON Pulse generation (Waveform 2)
(B606) No. 10 (NIWP) ←→ (i369) No. 6 (E1) Inverter water pump signal Input READY ON Pulse generation (Waveform 2)
(B606) No. 11 - - - -
(B606) No. 12 - - - -
(B606) No. 13 - - - -
(B606) No. 14 - - - -
(B606) No. 15 - - - -
(B606) No. 16 - - - -
(B606) No. 17 - - - -
(B606) No. 18 - - - -
(B606) No. 19 - - - -
(B606) No. 20 (HMCL) ←→ (i369) No. 6 (E1) CAN communication (MG communication) Input/Output IG ON Pulse generation (Waveform 1)
(B606) No. 21 - - - -
(B606) No. 22 (MMTG) Motor temperature sensor GND - - -
(B606) No. 23 (MMT) ←→ (B606) No. 22 (MMTG) Motor temperature sensor Input IG ON, see data monitor (25°C (77°F)) 3.6 - 4.6
IG ON, see data monitor (60°C (140°F)) 2.2 - 3.2
(B606) No. 24 - - - -
(B606) No. 25 (HSDN) ←→ (i369) No. 6 (E1) MG shutdown signal Output READY ON 0 -1.5
(B606) No. 26 - - - -
(B606) No. 27 (GMTG) Generator temperature sensor GND - - -
(B606) No. 28 (HMCH) ←→ (i369) No. 6 (E1) CAN communication (MG communication) Input/Output IG ON Pulse generation (Waveform 1)
(B606) No. 29 (DRN5) GND for shield - - -
(B606) No. 30 - - - -
(B606) No. 31 - - - -
(B606) No. 32 - - - -
(B606) No. 33 - - - -
(B606) No. 34 - - - -
(B606) No. 35 (GMT) ←→ (B606) No. 27 (GMTG) Generator temperature sensor Input IG ON, see data monitor (25°C (77°F)) 3.6 - 4.6
IG ON, see data monitor (60°C (140°F)) 2.2 - 3.2
(i369) No. 1 (SMRG) ←→ (B605) No. 2 (E01) System main relay signal Output IG ON → READY ON Pulse generation (Waveform 6)
(i369) No. 2 (E02) Power GND - - -
(i369) No. 3 (MRL2) ←→ (i369) No. 6 (E1) Main relay 2 output Output IG ON 11 - 14
(i369) No. 4 (+B1) ←→ (i369) No. 6 (E1) Power supply Input IG ON 11 - 14
(i369) No. 5 (SMRB) ←→ (B605) No. 2 (E01) System main relay signal Output IG ON → READY ON Pulse generation (Waveform 6)
(i369) No. 6 (E1) ECM GND - - -
(i369) No. 7 (ABFS) ←→ (i369) No. 6 (E1) Airbag operation signal Input READY ON Pulse generation (Waveform 7)
(i369) No. 8 - - - -
(i369) No. 9 (ST2) ←→ (i369) No. 6 (E1) Starter signal Input IG ON 0 -1.5
(i369) No. 10 - - - -
(i369) No. 11 - - - -
(i369) No. 12 (IMO) Immobilizer communication - - -
(i369) No. 13 - - - -
(i369) No. 14 (+B3M) ←→ (i369) No. 6 (E1) Main relay 2 open circuit monitor Input IG ON 11 - 14
(i369) No. 15 (SMRP) ←→ (B605) No. 2 (E01) System main relay signal Output IG ON → READY ON Pulse generation (Waveform 6)
(i369) No. 16 - - - -
(i369) No. 17 - - - -
(i369) No. 18 - - - -
(i369) No. 19 - - - -
(i369) No. 20 - - - -
(i369) No. 21 - - - -
(i369) No. 22 - - - -
(i369) No. 23 (CHEN) ←→ (i369) No. 6 (E1) Charger permission signal Output IG ON 0 - 1.5
(i369) No. 24 - - - -
(i369) No. 25 - - - -
(i369) No. 26 - - - -
(i369) No. 27 (BL) ←→ (i369) No. 6 (E1) Back-up light relay Output IG ON, shift R position 11 - 14
(i369) No. 28 - - - -
(i369) No. 29 - - - -
(i369) No. 30 - - - -
(i369) No. 31 - - - -
(i369) No. 32 - - - -
(i369) No. 33 (PSFT) Shift position sensor power supply Output ACC ON 7.5 - 14
(i369) No. 34 (CA4H) ←→ (i369) No. 6 (E1) CAN communication Input/Output IG ON Pulse generation (Waveform 5)
(i369) No. 35 (CA4L) ←→ (i369) No. 6 (E1) CAN communication Input/Output IG ON Pulse generation (Waveform 5)
(i370) No. 1 (BATT) ←→ (i369) No. 6 (E1) Constant power supply Input IG ON 11 - 14
READY ON 11 -15.5
(i370) No. 2 - - - -
(i370) No. 3 (+B2) ←→ (i369) No. 6 (E1) Power supply Input IG ON 11 - 14
(i370) No. 4 (IGB) ←→ (i369) No. 6 (E1) Power supply Input IG ON 8.5 - 14
(i370) No. 5 - - - -
(i370) No. 6 (E12) ECM GND - - -
(i370) No. 7 - - - -
(i370) No. 8 - - - -
(i370) No. 9 - - - -
(i370) No. 10 - - - -
(i370) No. 11 - - - -
(i370) No. 12 - - - -
(i370) No. 13 - - - -
(i370) No. 14 - - - -
(i370) No. 15 (EVHV) ←→ (i369) No. 6 (E1) HV/EV changeover switch signal Input IG ON, HV/EV changeover switch not operated 11 - 14
IG ON, HV/EV changeover switch operated 0 -1.5
(i370) No. 16 (TC) ←→ (i369) No. 6 (E1) Diagnostic terminal Input IG ON 11 - 14
(i370) No. 17 - - - -
(i370) No. 18 - - - -
(i370) No. 19 - - - -
(i370) No. 20 (ILK) ←→ (i369) No. 6 (E1) interlock switch Input IG ON, Service plug installed normally 0 -1.5
IG ON, Service plug unattached 11 - 14
(i370) No. 21 - - - -
(i370) No. 22 (WFSE) Flash rewriting signal - - -
(i370) No. 23 - - - -
(i370) No. 24 (CA1L) ←→ (i369) No. 6 (E1) CAN communication Input/Output IG ON Pulse generation (Waveform 4)
(i370) No. 25 (CA1H) ←→ (i369) No. 6 (E1) CAN communication Input/Output IG ON Pulse generation (Waveform 4)
(i370) No. 26 - - - -
(i370) No. 27 - - - -
(i370) No. 28 (MT2) ←→ (i370) No. 29 (MT2G) Motor temperature sensor 2 Input See data monitor (25°C (77°F)) 3.6 - 4.6
See data monitor (60°C (140°F)) 2.2 - 3.2
(i370) No. 29 (MT2G) Motor temperature sensor 2 GND      
(i370) No. 30 (CA3N) ←→ (i369) No. 6 (E1) CAN communication Input/Output IG ON Pulse generation (Waveform 3)
(i370) No. 31 (CA3P) ←→ (i369) No. 6 (E1) CAN communication Input/Output IG ON Pulse generation (Waveform 3)
  1. Oscilloscope waveform
NOTE: Oscilloscope waveform illustrated here is an example for reference. Noise and chattering in waveform are omitted.
  1. Waveform 1 (CAN communication signal)
    G13237885Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Waveforms vary depending on the communication contents.
    Item Contents
    Measured terminal CH1: (B606) No. 28 (HMCH) ←→ (i369) No. 6 (E1)
    CH2: (B606) No. 20 (HMCL) ←→ (i369) No. 6 (E1)
    Equipment setting 1 V/DIV, 50 μs/DIV
    Measuring condition IG ON
  2. Waveform 2 (Inverter water pump signal)
    G13237886Courtesy of SUBARU OF AMERICA, INC.
    Item Contents
    Measured terminal CH1: (B606) No. 9 (IWP) ←→ (i369) No. 6 (E1)
    CH2: (B606) No. 10 (NIWP) ←→ (i369) No. 6 (E1)
    Equipment setting 5 V/DIV, 20 ms/DIV
    Measuring condition READY ON
  3. Waveform 3 (CAN communication signal)
    G13237887Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Waveforms vary depending on the communication contents.
    Item Contents
    Measured terminal CH1: (i370) No. 31 (CA3P) ←→ (i369) No. 6 (E1)
    CH2: (i370) No. 30 (CA3N) ←→ (i369) No. 6 (E1)
    Equipment setting 1 V/DIV, 50 μs/DIV
    Measuring condition IG ON
  4. Waveform 4 (CAN communication signal)
    G13237885Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Waveforms vary depending on the communication contents.
    Item Contents
    Measured terminal CH1: (i370) No. 25 (CA1H) ←→ (i369) No. 6 (E1)
    CH2: (i370) No. 24 (CA1L) ←→ (i369) No. 6 (E1)
    Equipment setting 1 V/DIV, 50 μs/DIV
    Measuring condition IG ON
  5. Waveform 5 (CAN communication signal)
    G13237885Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Waveforms vary depending on the communication contents.
    Item Contents
    Measured terminal CH1: (i369) No. 34 (CA4H) ←→ (i369) No. 6 (E1)
    CH2: (i369) No. 35 (CA4L) ←→ (i369) No. 6 (E1)
    Equipment setting 1 V/DIV, 50 μs/DIV
    Measuring condition IG ON
  6. Waveform 6 (system main relay signal)
    G13237890Courtesy of SUBARU OF AMERICA, INC.
    NOTE: Waveforms vary depending on the communication contents.
    Item Contents
    Measured terminal CH1: (i369) No. 15 (SMRP) ←→ (B605) No. 2 (E01)
    CH2: (i369) No. 5 (SMRB) ←→ (B605) No. 2 (E01)
    CH3: (i369) No. 1 (SMRG) ←→ (B605) No. 2 (E01)
    Equipment setting 10 V/DIV, 200 ms/DIV
    Measuring condition IG ON → READY ON
  7. Waveform 7 (airbag operation signal)
G13237891Courtesy of SUBARU OF AMERICA, INC.
NOTE: Waveforms vary depending on the communication contents.
Item Contents
Measured terminal (i369) No. 7 (ABFS) ←→ (i369) No. 6 (E1)
Equipment setting 5 V/DIV, 125 ms/DIV
Measuring condition READY ON
scientia non olet · About LEMON Manuals