Toyota RAV4 manuals

Toyota Sienna Service Manual: System Voltage

DTC P0560 System Voltage

MONITOR DESCRIPTION

The battery supplies electricity to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, freeze frame data and fuel trim values. If the battery voltage falls below a minimum level, these memories are cleared and the ECM determines that there is a malfunction in the power supply circuit. When the engine is next started, the ECM illuminates the MIL and sets the DTC.

MONITOR DESCRIPTION

HINT: If DTC P0560 is set, the ECM does not store other DTCs.

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

1 CHECK FUSE (EFI NO. 1 FUSE)

 CHECK FUSE

  1. Remove the EFI No. 1 fuse from the engine room junction block.
  2.  Measure the resistance according to the value(s) in the table below.

    Standard resistance: Below 1 Ω

  3.  Reinstall the EFI No. 1 fuse.

2 INSPECT ECM (BATT VOLTAGE)

INSPECT ECM

  1. Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

REPLACE ECM

3 CHECK HARNESS AND CONNECTOR (ECM - EFI NO. 1 FUSE)

CHECK HARNESS AND CONNECTOR

  1. Check the harness and the connector between the EFI No. 1 fuse and ECM.
  1.  Remove the EFI No. 1 fuse from the engine room junction block.
  2. Disconnect the E4 ECM connector.
  3. Measure the resistance according to the value(s) in the table below.

Standard resistance : Check for open

Standard resistance

Check for short

Check for short

  1. Reconnect the ECM connector.
  2. Reinstall the EFI No. 1 fuse.

4 CHECK HARNESS AND CONNECTOR (EFI NO. 1 FUSE - BATTERY)

CHECK HARNESS AND CONNECTOR

  1. Check the harness and the connector between the EFI No. 1 fuse and battery.
  1.  Remove the EFI No. 1 fuse from the engine room junction block.
  2. Disconnect the negative battery cable.
  3. Measure the resistance according to the value(s) in the table below.

Standard resistance: Check for open

Standard resistance

Check for short

Check for short

  1. Reconnect the negative battery cable.
  2. Reinstall the EFI No. 1 fuse.

5 INSPECT BATTERY

  1. Check that the battery is not depleted.

CHECK AND REPLACE ENGINE ROOM RELAY BLOCK

Cold Start Ignition Timing Performance
DTC P050B Cold Start Ignition Timing Performance DESCRIPTION This monitor will run when the engine is started at -10 to 50C (14 to 122F) of the engine coolant temperature. The DTC will set after ...

Internal Control Module Random Access Memory (RAM) Error
DTC P0604 Internal Control Module Random Access Memory (RAM) Error DESCRIPTION The ECM continuously monitors its own internal memory status, internal circuits, and output signals transmitted to ...

Other materials:

Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE REAR NO. 2 SEAT LEG SIDE GARNISH SUB-ASSEMBLY  Disengage the 9 clips and remove the rear No. 2 seat leg side garnish sub-assembly.  Remove the 9 clips from the rear No. 2 seat leg side garnish sub-assembly. 3. ...

Air outlet control servo motor
ON-VEHICLE INSPECTION 1. INSPECT AIR OUTLET CONTROL SERVO MOTOR (a) Remove the air outlet control servo motor. (b) Connect the positive (+) lead from the battery to terminal 4 and negative (-) lead to terminal 5, then check that the lever turns to "DEF" position. (c) Connect ...

TRAC OFF Indicator Light Remains ON
DESCRIPTION The skid control ECU is connected to the combination meter via CAN and multiplex communications. When the traction OFF switch is turned on, the TRAC OFF indicator light will come on (for 2WD model). WIRING DIAGRAM INSPECTION PROCEDURE NOTICE: When replacing the brake actu ...

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