Last Modified: 11-29-2007 1.6 C
Service Category: Engine/Hybrid System Section: Engine Control
Model Year: 2008 Model: Sequoia Doc ID: RM000003242011X
Title: 2UZ-FE ENGINE CONTROL: SFI SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

P0606

ECM / PCM Processor

DESCRIPTION

The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standards, the ECM will illuminate the MIL and store a DTC immediately.

DTC No.

DTC Detection Condition

Trouble Area

P0606

When either condition below is met:

  • ECM main CPU error
  • ECM sub CPU error

ECM

MONITOR STRATEGY

Related DTC

P0606: ECM range check

Required sensors/Components (main)

ECM

Required sensors/Components (sub)

-

Frequency of Operation

Continuous

Duration

16 seconds

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not present

None

TYPICAL MALFUNCTION THRESHOLDS

CPU reset

Occurred

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:

P0606 is not present.

OK