Toyota RAV4 manuals

Toyota Sienna Service Manual: ECM Communication Stop Mode

DESCRIPTION

Detection Item

Symptom

Trouble Area

ECM Communication Stop Mode
  • "Engine" is not displayed on the "Communication Bus Check" screen of the intelligent tester
  • Applies to "ECM Communication Stop Mode" in the "DTC COMBINATION TABLE"
  • Power source circuit of ECM
  • CAN main wire or connector
  • ECM

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

HINT: Operating the ignition switch, any switches, or any doors triggers related ECU and sensor communication with the CAN. This communication will cause the resistance value to change.

1 CHECK OPEN IN CAN BUS WIRE (ECU MAIN BUS WIRE)

CHECK OPEN IN CAN BUS WIRE (ECU MAIN BUS WIRE)

  1. Disconnect ECM connector (E5).
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 CHECK WIRE HARNESS (E1, BATT, +BM, IGSW)

CHECK WIRE HARNESS (E1, BATT, +BM, IGSW)

  1. Disconnect the ECM connector (E11).
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

  1. Disconnect the ECM connector (E4).

CHECK WIRE HARNESS (E1, BATT, +BM, IGSW)

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

Standard voltage

Standard voltage

REPLACE ECM

Yaw Rate Sensor Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Yaw Rate Sensor Communication Stop Mode "Yaw rate/ Deceleration sensor" is not displayed ...

CAN Bus Line
DESCRIPTION When any DTC for the CAN communication system is output, first measure the resistance between the terminals of the DLC3 to specify the trouble area, and check that there is no short ...

Other materials:

Receiving a message
When an e-mail/SMS/MMS is received, the incoming message screen pops up with sound and is ready to be operated on the screen. Select to check the message. Select to refuse the message. Select to call the message sender. Receiving a message Depending on the cellular phone used f ...

DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER)  Checking DTCs. Connect the intelligent tester to the DLC3.  Turn the ignition switch ON.  Read DTCs by following the prompts on the tester screen. HINT: Refer to the intelligent tester operator's manual for further deta ...

Air-fuel ratio (a/f) and heated oxygen (ho2) sensor heater monitors (front a/f and rear ho2 sensor type)
(a) Preconditions The monitor will not run unless: The MIL is OFF. (b) Drive Pattern (1) Connect an intelligent tester to the DLC3. (2) Turn the ignition switch to the ON position. (3) Clear the DTCs. (4) Start the engine. (5) Allow the engine to idle for 10 minutes or more. ...

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