Toyota Tundra. Manual — part 1400

DESCRIPTION

The main CPU and sub CPU of the ECM perform data communication between each other. The main CPU
monitors the communications and WDC pulses from the sub CPU. When the signal malfunctions below are
detected, a DTC is output.

DTC DETECTION CONDITION AND TROUBLE AREA

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

INSPECTION PROCEDURE

1. CHECK DTC

DTC Code

DTC Detection Condition

Trouble Area

P060A

When either condition below is met:



ECM main CPU error



ECM sub CPU error



Electronic throttle monitoring CPU error

ECM

Related DTCs

None

Required sensors/components (main)

ECM

Required sensors/components (sub)

-

Frequency of operation

Once per driving cycle

Duration

16 seconds

MIL operation

Immediate

Sequence of operation

None

CPU reset

Occurred

When either condition below is met:

Condition 1 or 2

1. When all conditions below are met:

-



CPU reset

1 time or more



Learned TP - Learned APP

0.4 V or higher



Electronic throttle actuator

OFF

2. CPU reset

2 times or more

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra

a. Clear DTC. (See DTC CHECK/CLEAR ).

b. Turn the ignition switch off.

c. Disconnect the cable from the negative battery terminal and wait for 1 minute.

d. Connect the cable to the negative battery terminal.

e. Turn the ignition switch to ON.

f. Check DTC.

OK: P060A is not present.

NG : REPLACE ECM (See REMOVAL )

OK : CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT
PROBLEMS )

DTC P060B INTERNAL CONTROL MODULE A/D PROCESSING PERFORMANCE

DESCRIPTION

This DTC is output when a communication error occurs in the ECM.

DTC DETECTION CONDITION AND TROUBLE AREA

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

DTC Code

DTC Detection Condition

Trouble Area

P060B

ECM main CPU communication error

ECM

Related DTCs

None

Required sensors/components (main)

ECM

Required sensors/components (sub)

-

Frequency of operation

Once per driving cycle

Duration

1 second

MIL operation

Immediate

Sequence of operation

None

None

-

Internal control module serial communication

Fail

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra

INSPECTION PROCEDURE

1. CHECK DTC

a. Clear DTC. (See DTC CHECK/CLEAR ).

b. Turn the ignition switch off.

c. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

d. Connect the cable to the negative (-) battery terminal.

e. Turn the ignition switch to ON.

f. Check DTC.

OK: P060B is not present.

NG : REPLACE ECM (See REMOVAL )

OK : CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT
PROBLEMS )

DTC P060D INTERNAL CONTROL MODULE ACCELERATOR PEDAL POSITION
PERFORMANCE

DESCRIPTION

The ECM monitors the input signals of the Accelerator Pedal Position (APP) sensor No. 1. When the input
signals and control signals are deviated, a DTC is output.

DTC DETECTION CONDITION AND TROUBLE AREA

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

DTC Code

DTC Detection Condition

Trouble Area

P060D

When either condition below is met:



ECM main CPU error



ECM sub CPU error

ECM

Related DTCs

None

Required sensors/components (main)

ECM

Required sensors/components (sub)

-

Frequency of operation

Once per driving cycle

Duration

1 second

MIL operation

Immediate

Sequence of operation

None

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

INSPECTION PROCEDURE

1. CHECK DTC

a. Clear DTC. (See DTC CHECK/CLEAR ).

b. Turn the ignition switch off.

c. Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.

d. Connect the cable to the negative (-) battery terminal.

e. Turn the ignition switch to ON.

f. Check DTC.

OK: P060D is not present.

NG : REPLACE ECM (See REMOVAL )

OK : CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT
PROBLEMS )

DTC P060E INTERNAL CONTROL MODULE THROTTLE POSITION PERFORMANCE

DESCRIPTION

The ECM monitors the input signals of the Throttle Position (TP) sensor No. 1 and stop light switch. As the
ECM monitors the input signals of the TP sensor No. 1 and the STP signals of the stop light switch, if the input
signals and control signals are deviated, a DTC is output.

DTC DETECTION CONDITION AND TROUBLE AREA

MONITOR STRATEGY

MONITOR STRATEGY

None

-

Difference of main APP and sub APP

0.3 V or higher

DTC Code

DTC Detection Condition

Trouble Area

P060E

When either condition below is met:



ECM main CPU error



ECM sub CPU error

ECM

Related DTCs

None

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (2UZ-FE) - Tundra