Toyota Venza: Terminals Of Ecu

Toyota Venza Service Manual / Sliding Roof / Convertible / Sliding Roof System / Terminals Of Ecu

TERMINALS OF ECU

1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)

(a) Disconnect the P4 ECU connector.

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

HINT:

Measure the values on the wire harness side with the connector disconnected.

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
P4-1 (B) - P4-2 (E)	R - W-B	Battery power supply	Always	11 to 14 V
P4-5 (IG) - P4-2 (E)	L - W-B	Ignition switch power supply	Ignition switch off	Below 1 V
P4-5 (IG) - P4-2 (E)	L - W-B	Ignition switch power supply	Ignition switch ON	11 to 14 V
P4-2 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω

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

(d) Measure the voltage according to the value(s) in the table below.

Tester Connection	Wiring Color	Terminal Description	Condition	Specified Condition
P4-7 (OPN) - P4-2 (E)	GR - W-B	Sliding roof motor open	Ignition switch ON, SLIDE OPEN switch on	Below 1 V
P4-7 (OPN) - P4-2 (E)	GR - W-B	Sliding roof motor open	Ignition switch ON, SLIDE OPEN switch off	11 to 14 V
P4-9 (CLS) - P4-2 (E)	BR - W-B	Sliding roof motor close	Ignition switch ON, SLIDE CLOSE switch on	Below 1 V
P4-9 (CLS) - P4-2 (E)	BR - W-B	Sliding roof motor close	Ignition switch ON, SLIDE CLOSE switch off	11 to 14 V
P4-10 (UP) - P4-2 (E)	LG - W-B	Sliding roof motor up	Ignition switch ON, TILT UP switch on	Below 1 V
P4-10 (UP) - P4-2 (E)	LG - W-B	Sliding roof motor up	Ignition switch ON, TILT UP switch off	11 to 14 V
P4-8 (DWN) - P4-2 (E)	R - W-B	Sliding roof motor down	Ignition switch ON, TILT DOWN switch on	Below 1 V
P4-8 (DWN) - P4-2 (E)	R - W-B	Sliding roof motor down	Ignition switch ON, TILT DOWN switch off	11 to 14 V

If the result is not as specified, the sliding roof ECU (sliding roof drive gear sub-assembly) may have a malfunction.

Diagnosis System

DIAGNOSIS SYSTEM 1. DESCRIPTION (a) Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfuncti ...

Data List / Active Test

DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any p ...

Other materials about Toyota Venza:

Fail-safe Chart
FAIL-SAFE CHART 1. POWER WINDOW OPERATION IN FAIL-SAFE MODE HINT: If the pulse sensor built into the power window regulator motor malfunctions, the power window control system enters fail-safe mode. (a) The power window control system prohibits the follo ...

Purge Valve
Components COMPONENTS ILLUSTRATION Inspection INSPECTION PROCEDURE 1. INSPECT NO. 1 VACUUM SWITCHING VALVE ASSEMBLY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Te ...

Removal
REMOVAL PROCEDURE 1. REMOVE FRONT SEAT HEADREST ASSEMBLY 2. REMOVE FRONT SEAT REAR OUTER TRACK COVER 3. REMOVE FRONT SEAT REAR INNER TRACK COVER 4. REMOVE FRONT SEAT ASSEMBLY 5. REMOVE RECLINING POWER SEAT SWITCH KNOB 6. REMOVE SLIDE AND VER ...