Last Modified: 4-30-2014 6.6 G Doc ID: RM000001CDX008X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: SEAT: FRONT POWER SEAT LUMBAR SWITCH: INSPECTION; 2006 MY LX470 [05/2005 -        ]

INSPECTION

1. INSPECT LUMBAR SUPPORT SWITCH LH

(a) Check the lumbar support switch.

(1) Check the continuity between the terminals when each switch is operated.

OK:

Tester Connection

Switch Condition

Specified Condition

1 (LF) - 4 (B2)

HOLD

Continuity

2 (LR) - 3 (E2)

HOLD

Continuity

1 (LF) - 3 (E2)

OFF

Continuity

2 (LR) - 3 (E2)

OFF

Continuity

1 (LF) - 3 (E2)

RELEASE

Continuity

2 (LR) - 4 (B2)

RELEASE

Continuity

If the continuity is not as specified, replace the switch.

2. INSPECT LUMBAR SUPPORT SWITCH RH

(a) Check the lumbar support switch.

(1) Check the continuity between the terminals when each switch is operated.

OK:

Tester Connection

Switch Condition

Specified Condition

1 (B2) - 4 (LF)

HOLD

Continuity

2 (E2) - 3 (LR)

HOLD

Continuity

2 (E2) - 3 (LR)

OFF

Continuity

2 (E2 ) - 4 (LF)

OFF

Continuity

1 (B2) - 3 (LR)

RELEASE

Continuity

2 (E2 ) - 4 (LF)

RELEASE

Continuity

If the continuity is not as specified, replace the switch.

(b) Check the lumbar support switch circuit.

(1) Disconnect the switch connector and connect the seat wire harness to the floor wire harness.

(2) Check the connector on the wire harness side.

OK:

Tester Connection

Switch Condition

Specified Condition

2 (E2) - Body ground

Always

Continuity

1 (B2) - Body ground

Always

Battery positive voltage

If the circuit is not as specified, inspect the circuits connected to other parts.