Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

(a) Disconnect the D47 air conditioning amplifier assembly connector.


(b) Measure the voltage and resistance 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

D47-1 (IG+) - D47-14 (GND)

Y - W

Power source (IG)

Ignition switch ON

11 to 14 V

D47-1 (IG+) - D47-14 (GND)

Y - W

Power source (IG)

Ignition switch off

Below 1 V

D47-21 (B) - D47-14 (GND)

V - W

Power source (Back-up)

Always

11 to 14 V

D47-14 (GND) - Body ground

W - 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 D47 air conditioning amplifier assembly connector.

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

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

D47-18 (D) - D47-14 (GND)

G - W

Rear defogger signal

Ignition switch ON, rear window defogger switch off

11 to 14 V

D47-18 (D) - D47-14 (GND)

G - W

Rear defogger signal

Ignition switch ON, rear window defogger switch on

Below 1 V

D47-37 (LIN1) - D47-14 (GND)

SB - W

LIN communication line

Ignition switch ON

Pulse generation

If the result is not as specified, the air conditioning amplifier assembly may have a malfunction.

2. CHECK AIR CONDITIONING CONTROL ASSEMBLY

(a) Disconnect the E3 air conditioning control assembly connector.


(b) Measure the voltage and resistance 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

E3-4 (IG+) - E3-5 (GND)

GR - W

Power source (IG)

Ignition switch ON

11 to 14 V

E3-4 (IG+) - E3-5 (GND)

GR - W

Power source (IG)

Ignition switch off

Below 1 V

E3-5 (GND) - Body ground

W - 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 E3 air conditioning control assembly connector.

(d) Check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

E3-2 (LIN1) - E3-5 (GND)

SB - W

LIN communication line

Ignition switch ON

Pulse generation

If the result is not as specified, the air conditioning control assembly may have a malfunction.

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 lis ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrus ...

Other materials about Toyota Venza:

Coolant
Replacement REPLACEMENT PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER 2. REMOVE NO. 2 ENGINE UNDER COVER 3. DRAIN ENGINE COOLANT (a) Loosen the radiator drain cock plug and drain the coolant. NOTICE: Do not remove the reserve tank cap or radiator drai ...

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE FRONT TRANSAXLE CASE OIL SEAL (a) Using SST, remove the front transaxle case oil seal from the transaxle housing. SST: 09308-00010 2. REMOVE TRANSAXLE CASE OIL ...

Luggage compartment features
 - Cargo hooks Cargo hooks are provided for securing loose items.  - Shopping bag hooks  - Auxiliary box Lift the right side deck board.  - Luggage cover Pull out the luggage cover and hook it on the anchors. Removing luggage ...

© 2016-2019 Copyright www.tovenza.com

0.2152