Last Modified: 4-30-2014 6.6 C Doc ID: RM000002I3T01AX
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: 2UZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0607; Control Module Performance; 2006 MY LX470 [05/2005 -        ]

DTC

P0607

Control Module Performance

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 standard, the ECM will illuminate the MIL and set a DTC immediately.

The ECM also monitors the cruise control cancel circuit. If this circuit malfunctions, the ECM will set a DTC immediately (MIL is not illuminated).

DTC No.

DTC Detection Condition

Trouble Area

P0607
  • ECM main CPU error
  • ECM sub CPU error
  • Cruise control cancel circuit malfunction

ECM

MONITOR STRATEGY

Related DTCs

None

Required sensors / components (Main)

ECM

Required sensors / components (Related)

-

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) Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.

(b) Clear DTC 2006 MY LX470 [05/2005 -        ]; 2UZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: DTC CHECK / CLEAR .

(c) Turn the ignition switch OFF.

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

(e) Connect the cable to the negative battery terminal.

(f) Turn the ignition switch ON.

(g) Check DTC.

OK:

P0607 is not present.

NG

REPLACE ECM

OK

CHECK FOR INTERMITTENT PROBLEMS