Avalon (2000), Camry Solara, Land Cruiser

Disconnect sun roof ECU 10-pin connector. ECU is located behind overhead console. Check for continuity or voltage at indicated ECU wiring harness connector terminals with sun roof switch in specified positions. See appropriate SUN ROOF ECU TEST table. If test results are as specified, sun roof ECU circuits are okay. Replace sun roof ECU. If test results are not as specified, repair or replace appropriate switch or wire. See Fig 1.

SUN ROOF ECU TEST (2000 AVALON)

Terminal No. & Switch Position

Specification

3 ⁽¹⁾

Driver's Door

Open Or Switch On

Continuity

Closed Or Switch Off

No Continuity

4 ⁽¹⁾

Passenger's Door

Open Or Switch On

Continuity

Closed Or Switch Off

No. Continuity

5 ⁽¹⁾

Battery Voltage

7 ⁽¹⁾

Continuity

8 ⁽¹⁾

Ignition Switch LOCK Or ACC

No Voltage

Ignition Switch ON

Battery Voltage

9 ⁽¹⁾

Slide

Off Or Open

No Continuity

Continuity

10 ⁽¹⁾

Slide

Off Or Open

No Continuity

Continuity

⁽¹⁾	Terminal connected to ground.

SUN ROOF ECU TEST (CAMRY SOLARA)

Terminal No. & Switch Position

Specification

2 ⁽¹⁾

Slide

Off

No Continuity

Open

Continuity

3 ⁽¹⁾

Ignition Switch OFF Or ACC

No Voltage

Ignition Switch ON

Battery Voltage

5 ⁽¹⁾

Tilt

Off

No Continuity

Continuity

8 ⁽¹⁾

Continuity

⁽¹⁾	Terminal connected to ground.

SUN ROOF ECU TEST (LAND CRUISER)

Terminal No. & Switch Position

Specification

3 ⁽¹⁾

Tilt

Off Or Up

No Continuity

Down

Continuity

4 ⁽¹⁾

Tilt

Off Or Down

No Continuity

Continuity

5 ⁽¹⁾

Battery Voltage

7 ⁽¹⁾

Continuity

8 ⁽¹⁾

Ignition Switch LOCK Or ACC

No Voltage

Ignition Switch ON

Battery Voltage

9 ⁽¹⁾

Slide

Off Or Close

No Continuity

Open

Continuity

10 ⁽¹⁾

Slide

Off Or Open

No Continuity

Continuity

⁽¹⁾	Terminal connected to ground.

Fig 1: Identifying Sun Roof ECU Connector Terminals (2000 Avalon, Camry Solara, Land Cruiser) Identifying Control Relay Connector Terminals & Sun Roof Switch Terminals (2000 Avalon)