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:

Installation
1. INSTALL ACCELERATOR PEDAL ROD NOTICE:  Avoid physical shock to the accelerator pedal assembly.  Do not disassemble the accelerator pedal assembly.  Install the accelerator pedal rod with the 2 nuts. Torque: 4.9 N*m (50 kgf*cm, 43 in.*lbf)  Connect the ...

Rear Occupant Classification Sensor LH Circuit Malfunction
DTC B1782 Rear Occupant Classification Sensor LH Circuit Malfunction DESCRIPTION The rear occupant classification sensor LH circuit consists of the occupant classification ECU and the rear occupant classification sensor LH. DTC B1782 is recorded when a malfunction is detected in the rear oc ...

Back door lock
INSPECTION 1. INSPECT BACK DOOR LOCK ASSEMBLY (W/O CLOSER)  Check operation of the door lock.  Using a screwdriver, push the latch in order to put the back door lock in the locked condition (full-latch position).  Connect the battery positive (+) lead to terminal ...

В© 2011-2019 Copyright www.tsienna.net