Toyota Venza: Terminals Of Ecu

Toyota Venza Service Manual / Lighting (int) / Lighting System / Terminals Of Ecu

TERMINALS OF ECU

1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

(a) Disconnect the 2A and 2F main body ECU (driver side junction block assembly) connectors.

(b) Measure the voltage and resistance according to the value(s) in the table below.

Standard Voltage

Symbols	Wiring Color	Terminal Description	Condition	Specified Condition
2A-1 - Body ground	B - Body ground	Battery power supply	Always	11 to 14 V

Standard Resistance

Symbols	Wiring Color	Terminal Description	Condition	Specified Condition
2F-16 - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

If the result is not as specified, there may be a malfunction on the wire harness side.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.

Standard Voltage

Symbols	Wiring Color	Terminal Description	Condition	Specified Condition
2F-5 (LSR) - Body ground	Y - Body ground	Rear door unlock detection switch LH or RH input	Rear door LH and RH locked	Pulse generation
2F-5 (LSR) - Body ground	Y - Body ground	Rear door unlock detection switch LH or RH input	Rear door LH or RH unlocked	Below 1 V
2K-9 (ILE)*1 - Body ground	R - Body ground	Transponder key amplifier illumination drive output	Illumination on	Below 1 V
2K-9 (ILE)*1 - Body ground	R - Body ground	Transponder key amplifier illumination drive output	Illumination off	11 to 14 V
2O-5 (LSR) - Body ground	BR - Body ground	Rear door unlock detection switch LH or RH input	Rear door LH and RH locked	Pulse generation
2O-5 (LSR) - Body ground	BR - Body ground	Rear door unlock detection switch LH or RH input	Rear door LH or RH unlocked	Below 1 V
2O-19 (LCTY) - Body ground	R - Body ground	Rear door courtesy light switch LH input	Rear door LH open	Below 1 V
2O-19 (LCTY) - Body ground	R - Body ground	Rear door courtesy light switch LH input	Rear door LH closed	Pulse generation
2R-5 (ILE) - Body ground	P - Body ground	Interior lights drive output	Interior lights on	Below 1 V
2R-5 (ILE) - Body ground	P - Body ground	Interior lights drive output	Interior lights off	11 to 14 V
2R-7 (DOMR) - Body ground	W - Body ground	DOME CUT relay drive output	DOME CUT relay off	Below 1 V
2R-7 (DOMR) - Body ground	W - Body ground	DOME CUT relay drive output	DOME CUT relay on	11 to 14 V
D49-7 (RCTY) - Body ground	GR - Body ground	Rear door courtesy light switch RH input	Rear door RH open	Below 1 V
D49-7 (RCTY) - Body ground	GR - Body ground	Rear door courtesy light switch RH input	Rear door RH closed	Pulse generation
D49-21 (PCTY) - Body ground	V - Body ground	Front passenger side door courtesy light switch input	Front passenger side door open	Below 1 V
D49-21 (PCTY) - Body ground	V - Body ground	Front passenger side door courtesy light switch input	Front passenger side door closed	Pulse generation
D49-25 (BCTY) - Body ground	GR - Body ground	Back door courtesy switch input	Back door open	Below 1 V
D49-25 (BCTY) - Body ground	GR - Body ground	Back door courtesy switch input	Back door closed	Pulse generation
D49-27 (LSWP) - Body ground	P - Body ground	Front passenger side door unlock detection switch input	Front passenger side door locked	Pulse generation
D49-27 (LSWP) - Body ground	P - Body ground	Front passenger side door unlock detection switch input	Front passenger side door unlocked	Below 1 V
D50-9 (LSWD) - Body ground	P - Body ground	Driver side door unlock detection switch input	Driver side door locked	Pulse generation
D50-9 (LSWD) - Body ground	P - Body ground	Driver side door unlock detection switch input	Driver side door unlocked	Below 1 V
D50-24 (DCTY) - Body ground	V - Body ground	Driver side door courtesy light switch input	Driver side door open	Below 1 V
D50-24 (DCTY) - Body ground	V - Body ground	Driver side door courtesy light switch input	Driver side door closed	Pulse generation

If the result is not as specified, the main body ECU (driver side junction block assembly) may have a malfunction.

*1: w/o Smart Key System

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order ...

Diagnosis System

DIAGNOSIS SYSTEM 1. DESCRIPTION (a) Lighting system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check ...

Other materials about Toyota Venza:

Initialization
INITIALIZATION NOTICE: Initialize the headlight leveling ECU assembly (set the zero point of the height control sensor in the headlight leveling ECU assembly) after the vehicle height changes due to replacement of the suspension or after ...

Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Main Body ECU (Driver Side junction Block Assembly) DTC Code Detection Item Trouble Area See page B1206 P/W Master Switch Communication Stop 1. M ...

Removal
REMOVAL PROCEDURE 1. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP 2. REMOVE FRONT PILLAR GARNISH 3. REMOVE NO. 2 INSTRUMENT PANEL SPEAKER PANEL SUB-ASSEMBLY 4. REMOVE FRONT NO. 4 SPEAKER ASSEMBLY (for 13 Speakers) (a) Remove the 2 ...