Toyota RAV4 manuals

Toyota Sienna Service Manual: Control Module Performance

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 standards, 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).

Control Module Performance

NOTICE: First check for an exhaust gas leak around the HO2S if P0606 is present. An exhaust gas leak generates noise in the HO2S output. The ECM may interpret this as an HO2S transistor malfunction.

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

INSPECTION PROCEDURE

1 CHECK WHETHER DTC OUTPUT RECURS (IN ADDITION TO DTC P0607)

(a) Connect the intelligent tester to the DLC3.

(b) Turn the ignition switch to the ON position.

(c) Turn the tester on.

(d) Clear the DTC.

(e) Turn the ignition switch off.

(f) Disconnect the battery negative terminal and wait for 1 minute.

(g) Connect the battery negative terminal.

(h) Turn the ignition switch to the ON position.

(i) Enter the following menus: DIAGNOSIS / ENHANCED II / DTC INFO / CURRENT CODES.

(j) Read the DTCs.

Result

REPLACE ECM

ECM / PCM Processor
DESCRIPTION The ECM continuously monitors its internal processors (CPUs), A/F sensor transistors and heated oxygen sensor (HO2S) transistors. This self-check ensures that the ECM is functionin ...

Starter Relay Circuit High
MONITOR DESCRIPTION While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM. If the ECM detects the Starter Control (STA) signal while the vehic ...

Other materials:

Removal
HINT: On the RH side, use the same procedures as on the LH side. 1. REMOVE REAR NO. 1 SEAT ASSEMBLY LH HINT:  Captain seat type:  Center seat type: 2. REMOVE REAR DOOR WEATHERSTRIP LH 3. REMOVE ROPE HOOK ASSEMBLY 4. REMOVE BACK DOOR SCUFF PLATE 5. REMOVE ROOF HEADLINING GA ...

Auto Up / Down Function does not Operate
DESCRIPTION If the AUTO UP/DOWN function does not operate, any of the following troubles may be the cause:  When the PWR fuse or the power window relay (Marking: PWR) is replaced with new ones, or when the battery terminal and the connector of the power window master switch are d ...

Data list / active test
1. DATA LIST HINT: By the DATA LIST displayed by the intelligent tester, you can read the value of the switch, sensor, actuator and so on without removing any part. Reading the DATA LIST as the first step in troubleshooting is one of the methods to shorten the labor time.  Connect the ...

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