Lexus IS250 IS220d GSE20 ALE20 - CAN COMMUNICATION
CAN COMMUNICATION SYSTEM (for RHD) - TERMINALS OF ECU
- HINT:
- This section describes the standard CAN values for all CAN related components.
| CAN J/C (CAN LH J/C, CAN RH J/C) |
- HINT:
The connectors connected to the CAN J/C can be distinguished by the colors of the bus lines and the connecting side of the junction connector.
The connectors can be connected to any terminals on the same side.
CAN LH J/C
| CAN LH J/C A Side (with Earth Terminal) | Code | Color (CANH Side) | Color (CANL Side) |
| Power steering ECU | J1 | P | W |
| ECM | J2 | B | W |
| Seat belt control ECU | J3 | V | W |
| Center airbag sensor | J4 | R | W |
| CAN LH J/C B Side (without Earth Terminal) | Code | Color (CANH Side) | Color (CANL Side) |
| Yaw rate sensor | J5 | P | W |
| CAN main bus line (bus line connecting CAN LH J/C and CAN RH J/C) | J7 | B | W |
| Television camera ECU | J8 | L | W |
CAN RH J/C
| CAN RH J/C A Side (with Earth Terminal) | Code | Color (CANH Side) | Color (CANL Side) |
| CAN main bus line (bus line connecting CAN RH J/C and CAN LH J/C) | J81 | B | W |
| Steering angle sensor | J82 | P | W |
| DLC3 | J94 | G | W |
| Skid control ECU | J96 | R | W |
| CAN RH J/C B Side (without Earth Terminal) | Code | Color (CANH Side) | Color (CANL Side) |
| Gateway ECU | J84 | B | W |
| Distance control ECU | J97 | GR | W |
The terminals on connectors for the CAN J/C
| Terminal | Terminal symbol |
| 1 | CANH |
| 2 | CANL |
Wiring diagram for identifying CAN J/C connectors.
| DLC3 |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition J21-6 (CANH) - J21-14 (CANL) G - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω J21-6 (CANH) - J21-4 (CG) G - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J21-14 (CANL) - J21-4 (CG) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J21-6 (CANH) - J21-16 (BAT) G - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher J21-14 (CANL) - J21-16 (BAT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| SKID CONTROL ECU WITH ACTUATOR (WITHOUT VDIM) |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition A14-11 (CANH) - A14-25 (CANL) B - R HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω A14-11 (CANH) - A14-32 (GND1) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher A14-25 (CANL) - A14-32 (GND1) R - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher A14-11 (CANH) - A14-31 (+BS) B - BR HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher A14-25 (CANL) - A14-31 (+BS) R - BR LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| STEERING ANGLE SENSOR |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition J23-10 (CANH) - J23-9 (CANL) P - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω J23-10 (CANH) - J23-2 (ESS) P - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J23-9 (CANL) - J23-2 (ESS) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J23-10 (CANH) - J23-3 (BAT) P - LG HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher J23-9 (CANL) - J23-3 (BAT) W - LG LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| YAW RATE SENSOR |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition J41-3 (CANH) - J41-2 (CANL) P - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω J41-3 (CANH) - J41-1 (GND) P - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J41-2 (CANL) - J41-1 (GND) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J41-3 (CANH) - J21-16 (BAT) P - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher J41-2 (CANL) - J21-16 (BAT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| DISTANCE CONTROL ECU |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Condition Specified Condition J17-8 (CANH) - J17-9 (CANL) GR - W Engine Switch off 54 to 69 Ω J17-8 (CANH) - J17-12 (GND) GR - BR Engine Switch off 1 kΩ or higher J17-9 (CANL) - J17-12 (GND) W - BR Engine Switch off 1 kΩ or higher J17-8 (CANH) - J21-16 (BAT) GR - L Engine Switch off 1 kΩ or higher J17-9 (CANL) - J21-16 (BAT) W - L Engine Switch off 1 kΩ or higher
| SEAT BELT CONTROL ECU |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition Q38-4 (CANH) - Q38-6 (CANL) B - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω Q38-4 (CANH) - Q38-18 (PGND) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher Q38-6 (CANL) - Q38-18 (PGND) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher Q38-4 (CANH) - Q38-9 (+B) B - W HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher Q38-6 (CANL) - Q38-9 (+B) W - W LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| TELEVISION CAMERA ECU |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition J92-7 (CANH) - J92-6 (CANL) L - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω J92-78 (CANH) - J93-8 (GND1) L - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J92-6 (CANL) - J93-8 (GND1) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J92-7 (CANH) - J93-1 (+B) L - R HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher J92-6 (CANL) - J93-1 (+B) W - R LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| POWER STEERING ECU |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition A31-2 (CANH) - A31-3 (CANL) B - R HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω A31-2 (CANH) - A31-5 (PGND) B - B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher A31-3 (CANL) - A31-5 (PGND) R - B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher A31-2 (CANH) - A31-4 (PIG) B - R HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher A31-3 (CANL) - A31-4 (PIG) R - R LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| CENTER AIRBAG SENSOR |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition J47-13 (CANH) - J47-22 (CANL) R - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 54 to 69 Ω J47-13 (CANH) - J47-25 (E1) R - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J47-22 (CANL) - J47-25 (E1) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J47-13 (CANH) - J21-16 (BAT) R - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher J47-22 (CANL) - J21-16 (BAT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| ECM |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Condition Specified Condition A5-25 (CANH) - A5-24 (CANL) Engine Switch off 108 to 132 Ω
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition A5-25 (CANH) - A5-24 (CANL) B - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 108 to 132 Ω A5-25 (CANH) - A5-2 (EC) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher A5-24 (CANL) - A5-2 (EC) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher A5-25 (CANH) - A5-4 (BATT) B - L HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher A5-24 (CANL) - A5-4 (BATT) W - L LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
| GATEWAY ECU |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Condition Specified Condition J76-17 (CA1H) - J76-18 (CA1L) Engine Switch off 108 to 132 Ω
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Terminals Wiring Color Terminal Description Condition Specified Condition J76-17 (CA1H) - J76-18 (CA1L) B - W HIGH-level CAN bus line - LOW-level CAN bus line Engine Switch off 108 to 132 Ω J76-17 (CA1H) - J76-24 (GND) B - W-B HIGH-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J76-18 (CA1L) - J76-24 (GND) W - W-B LOW-level CAN bus line - Ground Engine Switch off 1 kΩ or higher J76-17 (CA1H) - J76-10 (BATT) B - LG HIGH-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher J76-18 (CA1L) - J76-10 (BATT) W - LG LOW-level CAN bus line - Battery positive Engine Switch off 1 kΩ or higher
LEXUS IS250, IS220d / GSE20 ALE20