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:

Air Outlet Damper Position Sensor Circuit
DESCRIPTION This sensor detects the position of the air outlet control servo motor and sends the appropriate signals to the A/C amplifier. The position sensor is built in the air outlet control servo motor. The position sensor's resistance changes as the air outlet control servo motor arm ...

Installation
1. INSTALL SLIDING ROOF HOUSING ASSEMBLY Install the housing with the 6 nuts. Install the 4 brackets with the 8 bolts. Connect the 4 hoses and drive gear connector. 2. ADJUST SLIDING ROOF GLASS SUB-ASSEMBLY Check for a difference in levels between the sliding roof (roof glass) a ...

Diagnostic trouble code chart
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below. (Proceed to the page given for that circuit.) BACK DOOR CLOSER SYSTEM DTC No. Detection Item Trouble Area B2215 Back Door Closer Switch ...

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