Toyota Tundra. Manual — part 614

Fig. 13: Inspecting Front Seat Adjuster Assembly LH
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: Go to step 5

Battery positive (+) --> Terminal Z9-2 (SLD+)

Battery negative (-) --> Terminal 29-3 (SLD-)

Seat slides forward (A)

Battery negative (-) --> Terminal Z9-2 (SLD+)

Battery positive (+) --> Terminal Z9-3 (SLD-)

Seat slides rearward (B)

Battery positive (+) --> Terminal Z9-7 (LFT+)

Battery negative (-) --> Terminal Z9-9 (LFT-)

Seat cushion rises (C)

Battery negative (-) --> Terminal Z9-7 (LFT+)

Battery positive (+) --> Terminal Z9-9 (LFT-)

Seat cushion lowers (D)

Battery positive (+) --> Terminal Z9-6 (FRV+)

Battery negative (-) --> Terminal Z9-4 (FRV-)

Seat cushion front rises (E)

Battery negative (-) --> Terminal Z9-6 (FRV+)

Battery positive (+) --> Terminal Z9-4 (FRV-)

Seat cushion front lowers (F)

Battery positive (+) --> Terminal Z9-8 (RCL+)

Battery negative (-) --> Terminal Z9-10 (RCL-)

Seat tilts forward (G)

Battery negative (-) --> Terminal Z9-8 (RCL+)

Battery positive (+) --> Terminal Z9-10 (RCL-)

Seat reclines (H)

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Seat - Tundra

OK: REPLACE FRONT POWER SEAT SWITCH LH (see REMOVAL )

5. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH LH - POSITION

MOTOR)

a. Disconnect the Z9 switch connector.

b. Disconnect the Z3, Z4, Z5 and Z6 motor connectors.

c. Measure the resistance according to the value(s) in the table below.

Standard resistance

FRONT POWER SEAT SWITCH LH - POSITION MOTOR

Tester Connection

Condition Specified Condition

29-2 (SLD+) - Z3-1

Always

Below 1 ohms

Z9-3 (SLD-) - Z3-2

Z9-6 (FRV+) - Z4-1

Z9-4 (FRV-) - Z4-2

Z9-7 (LFT+) - Z5-2

Z9-9 (LFT-)-Z5-1

Z9-8 (RCL+) - Z6-2

Z9-10 (RCL-)-Z6-1

Z9-2 (SLD+) - Body ground

Always

10 kohms or higher

Z9-3 (SLD-) - Body ground

Z9-6 (FRV+) - Body ground

Z9-4 (FRV-) - Body ground
Z9-7 (LFT+) - Body ground

Z9-9 (LFT-) - Body ground

Z9-8 (RCL+) - Body ground

Z9-10 (RCL-)-Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Seat - Tundra

Fig. 14: Identifying Front Power Seat Switch And Power Seat Slide Position Motor Connector

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Seat - Tundra

Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE FRONT SEAT ADJUSTER ASSEMBLY LH (see REMOVAL )

6. INSPECT FUSE (FR P/SEAT LH)

a. Remove the FR P/SEAT LH fuse from the main body ECU.

b. Measure the resistance according to the value(s) in the table below.

Standard resistance

FUSE (FR P/SEAT LH)

NG: REPLACE FUSE

OK: Go to next step

7. INSPECT FRONT POWER SEAT LUMBAR SWITCH

a. Remove the switch (see REMOVAL ).

b. Measure the resistance according to the value(s) in the table below.

Standard resistance

FRONT POWER SEAT LUMBAR SWITCH

Tester Connection Condition Specified Condition

FR P/SEAT LH fuse Always

Below 1 ohms

Tester Connection Switch Condition Specified Condition

3 (B) - 4 (H)

HOLD

Below 1 ohms

1 (R) - 2 (E2)
1 (R) - 2 (E2)

OFF

4 (H) - 5 (E)
1 (R) - 3 (B)

RELEASE

4 (H) - 5 (E)

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Seat - Tundra