Wiper And Washer System Terminals Of Ecu
CHECK ENGINE ROOM NO. 2 J/B (FRONT CONTROLLER)
CHECK MAIN BODY ECU RH (COWL SIDE J/B RH)
CHECK MAIN BODY ECU LH (COWL SIDE J/B LH)
CHECK WINDSHIELD WIPER SWITCH ASSEMBLY (COMBINATION SWITCH ECU)
CHECK HEADLIGHT CLEANER CONTROL RELAY
Wiper And Washer System -- Terminals Of Ecu |
CHECK ENGINE ROOM NO. 2 J/B (FRONT CONTROLLER) |

Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
FMIG (2E-3) - E (2F-1)
| B-Y - W-B
| IG signal circuit (to IG relay)
| Engine switch off
| Below 1 V
|
Engine switch on (IG)
| 10 to 14 V
|
FMB3 (2E-4) - E (2F-1)
| G-R - W-B
| Power source circuit (from battery)
| Always
| 10 to 14 V
|
E (2F-1) - Body ground
| W-B - Body ground
| Ground circuit
| Always
| Below 1 V
|
W+ (2F-4) - E (2F-1)
| L - W-B
| Windshield washer motor circuit
| Windshield washer motor OFF
| Below 1 V
|
Windshield washer motor ON
| 10 to 14 V
|
MPX1 (2F-5) - E (2F-1)
| L - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
MPX2 (2F-6) - E (2F-1)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
FRWA (2F-8) - E (2F-1)
| L-O - W-B
| Headlight cleaner operation signal
| Windshield washer motor OFF
| 4.5 to 5.5 V
|
Windshield washer motor ON
| Below 1 V
|
WLVL (2F-7) - E (2F-1)
| V - W-B
| Washer fluid level sensor signal
| Washer fluid level is normal
| 10 to 14 V
|
Washer fluid is empty
| Below 1 V
|
CHECK MAIN BODY ECU RH (COWL SIDE J/B RH) |
*1: A/T
*2: M/T
*3: with Power Tilt and Power Telescopic
Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
MPX1 (RA-20) - GND2 (RD-7)
| GR - W-B (*3)
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
GND2 (RD-7) - Body ground
| W-B - Body ground
| Ground circuit
| Always
| Below 1 V
|
MPX1 (RJ-21) - GND2 (RD-7)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
BECU (RK-5) - GND2 (RD-7)
| G-R - W-B
| ECU power supply (from battery)
| Always
| 10 to 14 V
|
PKB (RL-9) - GND2 (RD-7) (*1) PKB (RA-12) - GND2 (RD-7) (*2)
| Y-B - W-B(*1) Y - W-B(*2)
| Parking brake switch circuit
| Parking brake pedal is depressed
| Below 1 V
|
Parking brake pedal is released
| 10 to 14 V
|
HDLO (A36-4) - GND2 (RD-7)
| R - W-B
| Headlight signal (to headlight cleaner relay)
| Headlight switch is OFF
| 10 to 14 V
|
Headlight switch is LOW
| Below 1 V
|
MPX2 (J75-21) - GND2 (RD-7)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
CHECK MAIN BODY ECU LH (COWL SIDE J/B LH) |

Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
GND (LD-3) - Body ground
| W-B - Body ground
| Ground circuit
| Always
| Below 1 V
|
SGND (LD-8) - Body ground
| W-B - Body ground
| Signal ground circuit
| Always
| Below 1 V
|
SGND (LD-9) - Body ground
| W-B - Body ground
| Signal ground circuit
| Always
| Below 1 V
|
WIG (LK-9) - GND (LD-3)
| L - W-B
| Front wiper motor power source circuit
| Engine switch off
| Below 1 V
|
Engine switch on (IG)
| 10 to 14 V
|
MPXB (LD-18) - GND (LD-3)
| LG - W-B
| ECU power supply (from battery)
| Always
| 10 to 14 V
|
IG (LM-1) - GND (LD-3)
| W - W-B
| Power source circuit (from battery)
| Always
| 10 to 14 V
|
S/S (A30-1) - GND (LD-3)
| Y - W-B
| Front wiper motor power supply circuit (LOW signal)
| Front wiper switch OFF
| Below 1 V
|
Front wiper switch LOW
| 10 to 14 V
|
+2 (A30-2) - GND (LD-3)
| R-L - W-B
| Front wiper motor power supply circuit (HI signal)
| Front wiper switch OFF
| Below 1 V
|
Front wiper switch HI
| 10 to 14 V
|
S/M (A30-3) - GND (LD-3)
| G - W-B
| Front wiper motor operation signal
| Front wiper is operated
| 10 to 14 V
|
Front wiper is stopped
| Below 1 V
|
MPX2 (A30-17) - GND (LD-3)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
2S (Q2-11) - GND (LD-3)
| B - W-B
| Front wiper switch HI signal (to combination switch)
| Front wiper switch OFF
| 10 to 14 V
|
Front wiper switch HI
| Below 1 V
|
MPX1 (Q3-15) - GND (LD-3)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
CHECK WINDSHIELD WIPER SWITCH ASSEMBLY (COMBINATION SWITCH ECU) |
Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
B (J26-1) - E (J26-5)
| LG - W-B
| Power source circuit (from battery)
| Always
| 10 to 14 V
|
IG (J26-2) - E (J26-5)
| B - W-B
| IG signal circuit (to IG relay)
| Engine switch off
| Below 1 V
|
Engine switch on (IG)
| 10 to 14 V
|
2S (J26-3) - E (J26-5)
| G - W-B
| Wiper switch HI signal
| Front wiper switch OFF
| Below 1 V
|
Front wiper switch HI
| 10 to 14 V
|
E (J26-5) - Body ground
| W-B - Body ground
| Ground circuit
| Always
| Below 1 V
|
MPX1 (J26-6) - E (J26-5)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
MPX2 (J26-7) - E (J26-5)
| GR - W-B
| Multiplex communication signal circuit
| Engine switch on (IG)
| Signal waveform
|
CHECK HEADLIGHT CLEANER CONTROL RELAY |

Symbols (Terminal No.)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
IG (A3-3) - E (A3-4)
| Y - W-B
| Engine switch on (IG) signal (Power source circuit)
| Engine switch off
| Below 1 V
|
IG (A3-3) - E (A3-4)
| Y - W-B
| Engine switch on (IG) signal (Power source circuit)
| Engine switch on (IG)
| 10 to 14 V
|
PB (A3-6) - E (A3-4)
| W-G - W-B
| Headlight cleaner motor operation signal
| Headlight cleaner motor is stopped
| Below 1 V
|
PB (A3-6) - E (A3-4)
| W-G - W-B
| Headlight cleaner motor operation signal
| Headlight cleaner motor is operating
| 10 to 14 V
|
HDLO (A3-1) - E (A3-4)
| R - W-B
| Daytime running light system operation signal
| Daytime running light is not operating
| Below 1 V
|
HDLO (A3-1) - E (A3-4)
| R - W-B
| Daytime running light system operation signal
| Daytime running light is operating
| 10 to 14 V
|
H (A3-2) - E (A3-4)
| R-G - W-B
| Headlight cleaner switch operation signal
| Headlight cleaner switch is OFF
| Below 1 V
|
H (A3-2) - E (A3-4)
| R-G - W-B
| Headlight cleaner switch operation signal
| Headlight cleaner switch is ON
| 10 to 14 V
|
E (A3-4) - Body ground
| W-B - Body ground
| Body ground
| Always
| Below 1 V
|
FRWA (A3-5) - E (A3-4)
| L-O - W-B
| Front washer motor operation signal
| Front washer switch is OFF
| Below 1 V
|
FRWA (A3-5) - E (A3 -4)
| L-O - W-B
| Front washer motor operation signal
| Front washer switch is ON
| 10 to 14 V
|