Lexus ES: Terminals Of Ecu
TERMINALS OF ECU
BLIND SPOT MONITOR SENSOR RH
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| R4-4 (OMIR) - R4-10 (BRGD) | SB - W-B | Outer rear view mirror indicator RH power source | Outer rear view mirror indicator RH illuminated | 3.5 to 9.5 V |
| Outer rear view mirror indicator RH blinking | Alternating between 0 to 9.5 V | |||
| Outer rear view mirror indicator RH not illuminated | Below 1 V | |||
| R4-5 (BRB) - R4-10 (BRGD) | B - W-B | IG power source | Engine switch off | Below 1 V |
| Engine switch on (IG) | 10.5 to 16 V | |||
| R4-10 (BRGD) - Body Ground | W-B - Body ground | Ground | Always | Below 1 V |
BLIND SPOT MONITOR SENSOR LH
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| R5-3 (BUZ) - R5-10 (BLGD) | BE - W-B | RCTA buzzer (blind spot monitor buzzer) operation signal | RCTA buzzer (blind spot monitor buzzer) not sounding | 11 to 14 V |
| RCTA buzzer (blind spot monitor buzzer) sounding | Alternating between 0 to 14 V | |||
| R5-4 (OMIL) - R5-10 (BLGD) | R - W-B | Outer rear view mirror indicator LH power source | Outer rear view mirror indicator LH illuminated | 3.5 to 9.5 V |
| Outer rear view mirror indicator LH blinking | Alternating between 0 to 9.5 V | |||
| Outer rear view mirror indicator LH not illuminated | Below 1 V | |||
| R5-5 (BLB) - R5-10 (BLGD) | B - W-B | IG power source | Engine switch off | Below 1 V |
| Engine switch on (IG) | 11 to 14 V | |||
| R5-10 (BLGD) - Body Ground | W-B - Body ground | Ground | Always | Below 1 V |
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Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129,U0142,U0293)
DESCRIPTION These DTCs are stored if there is a malfunction in the CAN communication system connected to the blind spot monitor sensor. HINT: If CAN communication system DTCs are stored, they may also
Lost Communication with Blind Spot Monitor Slave Module (U0232)
DESCRIPTION This DTC is stored when the blind spot monitor sensor RH judges that there is a communication problem with the blind spot monitor sensor LH. DTC No. Detection Item DTC Detection Con
Lost Communication with Blind Spot Monitor Master Module (U0233)
DESCRIPTION This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH. DTC No. Detection Item DTC Detection Con
SEE MORE:
Check Mode Procedure
CHECK MODE PROCEDURE HINT: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect malfunctions that cannot be detected in normal mode. NOTICE: All the stored DTCs and freeze frame data are cleared if: 1) the ECM is changed from normal mode to check mo
Inspection
INSPECTION CAUTION / NOTICE / HINT NOTICE:
When using a vise, place aluminum plates between the part and vise.
When using a vise, do not overtighten it.
PROCEDURE 1. INSPECT REAR DRIVE SHAFT ASSEMBLY (a) Check that there is no excessive play in the radial direction of the outboard joint.
