Last Modified: 11-29-2007 1.6 C
Service Category: Engine/Hybrid System Section: Engine Control
Model Year: 2008 Model: Sequoia Doc ID: RM000002Z1R00WX
Title: 2UZ-FE ENGINE CONTROL: SFI SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

P060A

Internal Control Module Monitoring Processor Performance

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 No.

DTC Detection Condition

Trouble Area

P060A

When any condition below is met:

  • ECM main CPU error
  • ECM sub CPU error
  • Electronic throttle monitoring CPU error

ECM

MONITOR STRATEGY

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

TYPICAL ENABLING CONDITIONS

CPU reset

Occurred

TYPICAL MALFUNCTION THRESHOLDS

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 more

- Electronic throttle actuator

OFF

2. CPU reset

2 times or more

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK DTC

(a) Clear DTC 2UZ-FE ENGINE CONTROL: SFI SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

(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.

OK