Dtc Description

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• RR SP RH+ open, short, short to ground, short to voltage

• RR SP RH− open, short, short to ground, short to voltage

• Rear speaker RH

• AV control unit

FAIL-SAFE

Rear speaker RH inoperative

Dtc Confirmation Procedure

DTC Confirmation Procedure

1. PERFORM DTC CONFIRMATION PROCEDURE

   1. CONSULT

      1. Ignition switch ON.

      2. Ignition switch OFF and wait at least 30 seconds.

      3. Ignition switch ON and wait at least 30 seconds or more.

      4. Select “Self Diagnostic Result” mode of “MULTI AV”.

      5. Check DTC.

   Is DTC B130B detected?

   YES>>

   Proceed to DTC Diagnosis Procedure.

   NO>>

   To check malfunction symptom before repair: Refer to Intermittent Incident.

   NO>>

   Confirmation after repair: Inspection End.

Diagnosis Procedure

Diagnosis Procedure

1. DETERMINE MALFUNCTION TYPE

   1. CONSULT

      1. Ignition switch ON.

      2. Ignition switch OFF and wait at least 30 seconds.

      3. Ignition switch ON and wait at least 30 seconds or more.

      4. Select “Self Diagnostic Result” mode of “MULTI AV”.

      5. Check DTC.

   Is DTC B130B–11, 12, 13 or 1C detected?

   YES>>

   13 [OPEN], or 11 [GND–SHORT] – GO TO 2.

   YES>>

   1C [SHORT] – GO TO 3.

   YES>>

   12 [VB–SHOR] – GO TO 4.

   NO>>

   Refer to Intermittent Incident.

2. CHECK SOUND SIGNAL CIRCUITS FOR OPEN OR SHORT TO GROUND

   1. 1. Ignition switch OFF.

      2. Disconnect AV control unit connector and rear speaker RH connector.

      3. Check the continuity between AV control unit connector and rear speaker RH connector.

         AV control unit		Rear speaker RH		Continuity
         Connector	Terminal	Connector	Terminal
         M103	13	B38	1	Yes
         	14		2

      4. Check the continuity between AV control unit connector and ground.

         AV control unit		—	Continuity
         Connector	Terminal
         M103	13	Ground	No
         	14

   Is the inspection result normal?

   YES>>

   GO TO 5.

   NO>>

   Repair or replace harness or connectors.

3. CHECK SOUND SIGNAL CIRCUITS FOR SHORT

   1. 1. Ignition switch OFF.

      2. Disconnect AV control unit connector and rear speaker RH connector.

      3. Check the continuity between the terminals of AV control unit connector.

         AV control unit			Continuity
         Connector	Terminal
         M103	13	14	No

   Is the inspection result normal?

   YES>>

   GO TO 5.

   NO>>

   Repair or replace harness or connectors.

4. CHECK SOUND SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

   1. 1. Ignition switch OFF.

      2. Disconnect AV control unit connector and rear speaker RH connector.

      3. Ignition switch ON.

      4. Check the voltage between AV control unit connector and ground.

         AV control unit		—	Voltage (Approx.)
         Connector	Terminal
         M103	13	Ground	0 V
         	14

   Is the inspection result normal?

   YES>>

   GO TO 5.

   NO>>

   Repair or replace harness or connectors.

5. CHECK REAR RH SPEAKER SIGNAL

   1. 1. Connect AV control unit connector and rear speaker RH connector.

      2. Ignition switch ON.

      3. AV control unit ON.

      4. Check signal between the terminals of AV control unit connector.

         AV control unit			Condition	Reference value
         Connector	(+)	(−)
         	Terminals
         M103	13	14	Audio signal output

   Is the inspection result normal?

   YES>>

   Replace rear speaker RH. Refer to Removal and Installation.

   NO>>

   Replace AV control unit. Refer to Removal and Installation.