Description

• 16:Er11

• CAN communication time-out

• 16:Er12

• Unit communication error

• 26:Er81

• Communication error with Bluetooth^® unit

Detection condition

• 16:Er11

• Time-out occurs in the audio unit CAN signal.

• 16:Er12

• The audio unit cannot receive CAN signal.

• 26:Er81

• The audio unit cannot receive CAN signal from the Bluetooth^® unit.

Fail-safe

• 16:Er11

• Not applicable

• 16:Er12

• Not applicable

• 26:Er81

• Not applicable

Possible cause

• Audio unit connector or terminal malfunction

• CD player connector or terminal malfunction

• Bluetooth^® unit connector or terminal malfunction (With Bluetooth^® unit)

• Connector C-14 connector or terminal malfunction

• Connector C-16 connector or terminal malfunction (With Bluetooth^® unit)

• Connector C-41 connector or terminal malfunction

• Short to power supply in wiring harness between the following terminals:

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1O— Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Short to ground in wiring harness between the following terminals:

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

• Short between circuits in the following wiring harness:

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1O—Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

• Open circuit in wiring harness between the following terminals:

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1O—Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

• CD player malfunction

• Bluetooth^® unit malfunction (With Bluetooth^® unit)

• Audio unit malfunction

Step

Inspection

Action

1

• Switch the ignition ON (engine off).

• Perform the DTC inspection using the M-MDS.

  (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.0)].)

• Is the power supply related DTC displayed?

Yes

NOTE:

• It may be affected by power supply-related malfunction.

Repair the malfunctioning location according to the applicable DTC troubleshooting.

(See DTC TABLE [PCM (SKYACTIV-G 2.0)].)

No

Go to the next step.

2

• Measure the voltage between audio unit terminal 1O (LOCAL MS-CAN CAN_H side) and body ground.

• Is the voltage B+?

Yes

A short to power supply in CAN_H side of LOCAL MS-CAN has occurred.

• Go to Step 5.

No

Go to the next step.

3

• Measure the voltage between audio unit terminal 1Q (LOCAL MS-CAN CAN_L side) and body ground.

• Is the voltage 0 V?

Yes

A short to ground in CAN_L side of LOCAL MS-CAN has occurred.

• Go to Step 6.

No

Go to the next step.

4

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Measure the resistance between audio unit 1O and 1Q terminals (wiring harness-side).

• Is the resistance approx. 60 ohms?

Yes

Go to Step 9. (LOCAL MS-CAN is normal)

No

If the resistance is 0 ohm:

• A short between circuits has occurred in LOCAL MS-CAN.

• Go to Step 7.

If the resistance is 120 ohms:

• An open circuit in the LOCAL MS-CAN has occurred.

• Go to Step 8.

5

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the following connectors:

• Audio unit

• CD player

• Bluetooth^® unit (With Bluetooth^® unit)

• Connect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off or on).

• Measure the voltage at the following terminals (wiring harness-side).

• Audio unit terminal 1O

• CD player terminal G

• Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Is the voltage 0 V?

Yes

Go to Step 9.

No

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1O—Bluetooth^® unit terminal Y (With Bluetooth^® unit)

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to power supply.

Go to Step 11.

6

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the following connectors:

• Audio unit

• CD player

• Bluetooth^® unit (With Bluetooth^® unit)

• Inspect for continuity between the following terminals (wiring harness-side) and body ground:

• Audio unit terminal 1Q

• CD player terminal H

• Bluetooth^® unit terminal Z (With Bluetooth^® unit)

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has a short to ground.

Go to Step 11.

No

Go to Step 9.

7

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the following connectors:

• Audio unit

• CD player

• Bluetooth^® unit (With Bluetooth^® unit)

• Inspect between the following terminals (wiring harness-side) for continuity.

• Audio unit terminal 1O and 1Q

• CD player terminal G and H

• Bluetooth^® unit terminal Y and Z (With Bluetooth^® unit)

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1O—Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short between circuits.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has shorted between circuits.

Go to Step 11.

No

Go to Step 9.

8

• Switch the ignition off.

• Disconnect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Disconnect the following connectors:

• Audio unit

• CD player

• Bluetooth^® unit (With Bluetooth^® unit)

• Inspect for continuity between the following terminals (wiring harness-side):

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1O—Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

• Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

• Audio unit terminal 1O—CD player terminal G

• Audio unit terminal 1Q—CD player terminal H

• Audio unit terminal 1O—Bluetooth^® unit terminal Y (With Bluetooth^® unit)

• Audio unit terminal 1Q—Bluetooth^® unit terminal Z (With Bluetooth^® unit)

If there is a common connector:

• Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

• Repair or replace the malfunctioning part.

If there is no common connector:

• Repair or replace the wiring harness which has an open circuit.

Go to Step 11.

No

Go to Step 9.

9

• Always reconnect all disconnected connectors.

• Connect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Clear the audio unit DTCs.

  (See CLEARING DTC [AUDIO UNIT].)

• Perform the audio unit DTC inspection.

  (See DTC INSPECTION [AUDIO UNIT].)

• Is the same DTC displayed?

Yes

Replace the CD player, then go to the next step.

(See CD PLAYER REMOVAL/INSTALLATION.)

No

Go to Step 12.

10

NOTE:

• For vehicles without the Bluetooth® unit, go to the next step.

• Clear the DTC for the Bluetooth^® unit.

  (See CLEARING DTC [AUDIO UNIT].)

• Perform the DTC inspection for the Bluetooth^® unit.

  (See DTC INSPECTION [AUDIO UNIT].)

• Is the same DTC displayed?

Yes

Replace the Bluetooth^® unit, then go to the next step.

(See Bluetooth® UNIT REMOVAL/INSTALLATION.)

No

Go to Step 12.

11

• Always reconnect all disconnected connectors.

• Connect the negative battery cable.

  (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

• Clear the DTC for the audio unit.

  (See CLEARING DTC [AUDIO UNIT].)

• Perform the audio unit DTC inspection.

  (See DTC INSPECTION [AUDIO UNIT].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the audio unit.

  (See AUDIO UNIT REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

12

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [AUDIO UNIT].)

No

DTC troubleshooting completed.