Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

1. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER DOOR)


(a) Disconnect the I13 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

I13-14 (BDR) - Body ground

V - Body ground

+B power supply

Always

11 to 14 V

I13-6 (CPUB) - Body ground

LG - Body ground

+B power supply

Always

11 to 14 V

I13-5 (SIG) - Body ground

L - Body ground

Ignition power supply

Ignition switch off → ON

0 V → 11 to 14 V

I13-7 (GND) - 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.

(c) Reconnect the I13 connector.

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

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

I12-1 (LMVR) - I12-9 (LMHR)

LG - P

Vertical mirror motor drive voltage

LH mirror surface moving upward → stopped

11 to 14 V → 0 V

I12-10 (LM+R) - I12-1 (LMVR)

R - LG

Vertical mirror motor drive voltage

LH mirror surface moving downward → stopped

11 to 14 V → 0 V

I12-10 (LM+R) - I12-9 (LMHR)

R - P

Horizontal mirror motor drive voltage

LH mirror surface moving right → stopped

11 to 14 V → 0 V

I12-9 (LMHR) - I12-1 (LMVR)

P - LG

Horizontal mirror motor drive voltage

LH mirror surface moving left → stopped

11 to 14 V → 0 V

I12-5 (LVC) - I12-14 (LE1)

Y - GR

Mirror position sensor power supply

Ignition switch ON

4.55 to 5.45 V

I12-6 (VSSR) - I12-14 (LE1)

G - GR

Mirror position sensor signal

Ignition switch ON

0.96 to 4.04 V

I12-13 (HSSR) - I12-14 (LE1)

L - GR

Mirror position sensor signal

Ignition switch ON

0.96 to 4.04 V

I13-3 (M2) - I13-13 (MSWE)

V - Y

M2 switch signal for seat memory switch

M2 switch on

Below 1 V

M2 switch off

11 to 14 V

I13-2 (M1) - I13-13 (MSWE)

B - Y

M1 switch signal for seat memory switch

M1 switch on

Below 1 V

M1 switch off

11 to 14 V

I13-1 (MM) - I13-13 (MSWE)

GR - Y

SET switch signal for seat memory switch

SET switch on

Below 1 V

SET switch off

11 to 14 V

2. CHECK OUTER MIRROR CONTROL ECU ASSEMBLY (FRONT PASSENGER DOOR)


(a) Disconnect the H13 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

H13-14 (BDR) - Body ground

R - Body ground

+B power supply

Always

11 to 14 V

H13-6 (CPUB) - Body ground

B - Body ground

+B power supply

Always

11 to 14 V

H13-5 (SIG) - Body ground

L - Body ground

Ignition power supply

Ignition switch off → ON

0 V → 11 to 14 V

H13-7 (GND) - 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.

(c) Reconnect the H13 connector.

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

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

H12-1 (RMVR) - H12-9 (RMHR)

LG - P

Vertical mirror motor drive voltage

RH mirror surface moving upward → stopped

11 to 14 V → 0 V

H12-10 (RM+R) - H12-1 (RMVR)

R - LG

Vertical mirror motor drive voltage

RH mirror surface moving downward → stopped

11 to 14 V → 0 V

H12-10 (RM+R) - H12-9 (RMHR)

R - P

Horizontal mirror motor drive voltage

RH mirror surface moving right → stopped

11 to 14 V → 0 V

H12-9 (RMHR) - H12-1 (RMVR)

P - LG

Horizontal mirror motor drive voltage

RH mirror surface moving left → stopped

11 to 14 V → 0 V

H12-5 (RVC) - H12-14 (RE1)

Y - GR

Mirror position sensor power supply

Ignition switch ON

4.55 to 5.45 V

H12-6 (VSSR) - H12-14 (RE1)

G - GR

Mirror position sensor signal

Ignition switch ON

0.96 to 4.04 V

H12-13 (HSSR) - H12-14 (RE1)

L - GR

Mirror position sensor signal

Ignition switch ON

0.96 to 4.04 V

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