Toyota Tundra. Manual — part 317

B: REPLACE ECM (See REMOVAL (1GR-FE))

C: REPLACE ECM (See REMOVAL (2UZ-FE))

D: REPLACE ECM (See REMOVAL (3UR-FE))

E: REPLACE ECM (See REMOVAL (3UR-FBE))

A: Go to Next Step

2. INSPECT STOP LIGHT SWITCH

a. Remove the stop light switch (see REMOVAL ).

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

Standard resistance

STOP LIGHT SWITCH

Fig. 13: Inspecting Stop Light Switch
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE STOP LIGHT SWITCH (See REMOVAL )

OK: Go to Next Step

3. CHECK HARNESS AND CONNECTOR (BATTERY - STOP LIGHT SWITCH)

Tester Connection

Switch Condition

Specified Condition

1 - 2

Pin pushed

10 kohms or higher

Pin not pushed

Below 1 ohms

3 - 4

Pin pushed

Below 1 ohms

Pin not pushed

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Cruise Control - Tundra

a. Disconnect the A4 stop light switch connector.

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

Standard voltage

BATTERY - STOP LIGHT SWITCH

Fig. 14: Identifying A4 Stop Light Switch Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step

4. CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH - ECM)

a. Disconnect the A4 stop light switch connector.

b. Disconnect the A24 ECM connector.

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

Standard resistance

STOP LIGHT SWITCH - ECM

Result

RESULT REFERENCE

Tester Connection

Switch Condition

Specified Condition

A4-2 - Body ground

Always

11 to 14 V

A4-3 - Body ground

Ignition switch ON

Tester Connection

Condition

Specified Condition

A4-1 - A24-36 (STP)

Always

Below 1 ohms

A4-1 - Body ground

Always

10 kohms or higher

A4-4 - A24-35 (ST1-)

Always

Below 1 ohms

A4-4 - Body ground

Always

10 kohms or higher

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Cruise Control - Tundra

Fig. 15: Identifying A4 Stop Light Switch And A24 ECM Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

B: REPLACE ECM (See REMOVAL (1GR-FE))

C: REPLACE ECM (See REMOVAL (2UZ-FE))

D: REPLACE ECM (See REMOVAL (3UR-FE))

Result

Proceed to

NG

A

OK (for 1GR-FE)

B

OK (for 2UZ-FE)

C

OK (for 3UR-FE)

D

OK (for 3RU-FBE)

E

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Cruise Control - Tundra

E: REPLACE ECM (See REMOVAL (3UR-FBE))

A: REPAIR OR REPLACE HARNESS OR CONNECTOR

DTC P0575 CRUISE CONTROL INPUT CIRCUIT

DESCRIPTION

This DTC indicates the internal abnormalities of the ECM.

DTC DETECTION CONDITION

HINT:

If DTC P0575 is detected while the cruise control is in operation, the skid control ECU clears the stored vehicle
speed in the ECM and cancels the cruise control operation. At the same time, the CRUISE main indicator light
blinks to inform the driver of the malfunction. When this trouble code is detected, fail-safe remains on until the
ignition switch is turned OFF.

INSPECTION PROCEDURE

1. CHECK FOR DTC

a. Clear the DTC (see DTC CHECK / CLEAR ).

b. Recheck for DTC (see DTC CHECK / CLEAR ).

OK: DTC P0575 is not output.

Result

RESULT REFERENCE

DTC Code

DTC Detection Condition

Trouble Area

P0575

When either of following
conditions is met:



Cruise control input signal
abnormal



Stop light switch input
signal abnormal

ECM

Result

Proceed to

OK

A

NG (for 1GR-FE)

B

NG (for 2UZ-FE)

C

NG (for 3UR-FE)

D

NG (for 3UR-FBE)

E

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Cruise Control - Tundra