Toyota Venza manuals

Toyota Venza: 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.

(c) Reconnect the P4 ECU connector.

(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.

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