CAN BUS DIAGNOSTICS TABLE



caution During diagnosis, a diagnosis code associated with another system may be set when the ignition switch is turned on with connector(s) disconnected. After completing the repair, confirm all systems for diagnosis code(s). If diagnosis code(s) are set, erase them all.
M.U.T.-III screen
 Comment
 Diagnosis detail
 Reference page
<3000, 3800>

<3200>

 Short circuit to battery in red displayed area is estimated.
 Diagnosis Item 1
Diagnose shorts in the power supply to CAN bus line.
Earthing in red displayed area is estimated.
 Diagnosis Item 2
Diagnose shorts in the earth to CAN bus line.
Short circuit between CAN_H and CAN_L in red displayed area is estimated.
 Diagnosis Item 3
Diagnose shorts between CAN_H and L lines.
<3000, 3800>

<3200>

 Disconnection in red displayed area is estimated.
 Diagnosis Item 4
Diagnose the terminator resistors.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 5
Diagnose when the M.U.T.-III cannot receive the data sent by combination meter.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 6
Diagnose when the M.U.T.-III cannot receive the data sent by ETACS-ECU.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 7
Diagnose when the M.U.T.-III cannot receive the data sent by centre display.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 8
Diagnose when the M.U.T.-III cannot receive the data sent by steering wheel sensor.
<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 9
Diagnose when the M.U.T.-III cannot receive the data sent by immobilizer-ECU <3200>.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 10
Diagnose when the M.U.T.-III cannot receive the data sent by CAN converter-ECU <vehicles with auto lamp or security alarm>.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 11
Diagnose the lines between the joint connectors (CAN1 and CAN2).
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 12
Diagnose when the M.U.T.-III cannot receive the data sent by SRS-ECU.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 13
Diagnose when the M.U.T.-III cannot receive the data sent by G and yaw rate sensor.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 14
Diagnose when the M.U.T.-III cannot receive the data sent by engine-A/T-ECU <3000-A/T, 3800> or engine-ECU <3000-M/T, 3200>.
<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 15
Diagnose when the M.U.T.-III cannot receive the data sent by A/T-ECU <3200-A/T>.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 16
Diagnose when the M.U.T.-III cannot receive the data sent by transfer-ECU.
<3000, 3800>

<3200>

 Harness disconnection or loose connection in red displayed area is estimated.
 Diagnosis Item 17
Diagnose when the M.U.T.-III cannot receive the data sent by resistor <vehicles without ASTC> or ASTC-ECU <vehicles with ASTC>.