Toyota Tundra. Manual — part 1590

Fig. 204: Identifying J9 Ignition Switch Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Result

RESULT CHART

B: Go to step 8

A: Go to Next Step

6. REPLACE IGNITION SWITCH ASSEMBLY

a. Replace the ignition switch (See REMOVAL ).

Tester Connection

Switch Condition

Specified Condition

5 (AM2) - 7 (ST2)

Ignition switch position LOCK

10 kohms or higher

Ignition switch position START

Below 1 ohms

Result Proceed to

NG

A

OK

B

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

7. READ VALUE USING TECHSTREAM (STARTER SIGNAL)

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON and turn the Techstream ON.

c. Enter the following menus Powertrain/Engine and ECT/Data List/All Data/Starter Signal.

d. Check the value displayed on the Techstream when the ignition switch is turned to the ON and

START positions.

OK

STARTER SIGNAL CONDITIONS

NG: Go to step 8

OK: SYSTEM OK

8. REPAIR OR REPLACE HARNESS OR CONNECTOR (PNP SWITCH - STA TERMINAL OF

ECM)

9. CHECK WHETHER DTC OUTPUT RECURS

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON.

c. Turn the Techstream ON.

d. Clear DTCs (See DTC CHECK/CLEAR ).

e. Drive the vehicle at more than 20 km/h (12.43 mph) for over 20 seconds.

f. Enter the following menus Powertrain/Engine and ECT/Trouble Codes.

g. Read DTCs.

Result

DTC OUTPUT RESULT

B: SYSTEM OK

A: REPLACE ECM (See REMOVAL )

DTC P0630 VIN NOT PROGRAMMED OR MISMATCH - ECM/PCM

DESCRIPTION

Ignition Switch Position Starter Signal

ON

OFF

START

ON

Result

Proceed to

P0617 is output

A

No DTC is output

B

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

DTC P0630 is set when the Vehicle Identification Number (VIN) is not stored in the Engine Control Module
(ECM) or the input VIN is incorrect. Input the VIN with the Techstream.

DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE CHART

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS CONDITIONS

COMPONENT OPERATING RANGE

COMPONENT OPERATING RANGE

INSPECTION PROCEDURE

1. READ CURRENT DTC

a. Connect the Techstream to the DLC3.

b. Turn the ignition switch to ON and turn the Techstream ON.

DTC

DTC Detection Condition

Trouble Area

P0630

When either condition below is
met (1 trip detection logic)



VIN not stored in ECM



Input VIN incorrect

ECM

Related DTCs

P0630 VIN not programmed

Required Sensors/Components (Main)

ECM

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

0.325 seconds

MIL Operation

Immediate

Sequence of Operation

None

Battery voltage

8 V or more

gnition switch

ON

Starter

OFF

VIN code

Not programmed

VIN code

Programmed

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

c. Enter the following menus Powertrain/Engine and ECT/Trouble Codes.

d. Read DTCs.

Result

DTC OUTPUT RESULT

If any DTCs other than P0630 are output, troubleshoot those DTCs first.

B: GO TO DTC CHART

A: Go to Next Step

2. INPUT VIN WITH TECHSTREAM

a. Refer to the REGISTRATION .

NEXT: END

DTC P0657 ACTUATOR SUPPLY VOLTAGE CIRCUIT/OPEN

DESCRIPTION

The ECM monitors the output voltage to the throttle actuator. This self-check ensures that the ECM is
functioning properly. The output voltage usually is 0 V when the ignition switch is turned off. If the output
voltage is higher than 7 V when the ignition switch is turned off, the ECM will illuminate the MIL and store a
DTC when the ignition switch is turned to ON.

DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE CHART

MONITOR STRATEGY

MONITOR STRATEGY

Result

Proceed to

P0630 is output

A

P0630 and other DTCs are output

B

NOTE:

If P0630 is stored, the VIN must be input to the ECM using the
Techstream. However, all DTCs are cleared automatically by the
Techstream when the VIN is input. If DTCs other than P0630 are set,
check them first.

DTC

DTC Detection Condition

Trouble Area

P0657

Throttle actuator power supply
error

ECM

Related DTCs

None

Required sensors/components (main)

ECM

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra