Lexus ES: Terminals Of Ecu
TERMINALS OF ECU
BLIND SPOT MONITOR SENSOR RH
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| 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 | Power switch off | Below 1 V |
| Power switch on (IG) | 11 to 14 V | |||
| R4-10 (BRGD) - Body Ground | W-B - Body ground | Ground | Always | Below 1 V |
BLIND SPOT MONITOR SENSOR LH
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| 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 | Power switch off | Below 1 V |
| Power 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
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Illumination Circuit
DESCRIPTION Power is supplied to the radio receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
The vehicle is equipped with a Supplemental Restraint System (SRS) which includ
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
If CAN communication system and lane control system DTCs are not output and any of the following problem symptoms exist, perform troubleshooting by checking the appropriate suspected areas in the order they are listed.
Use the table below to help determine the cause
