END ON-BOARD DIAGNOSIS
Turn OFF ignition switch.
ON BOARD DIAGNOSIS ITEM
The on board diagnosis has 3 modes: the self-diagnosis mode that performs the trouble diagnosis, the speaker adaptation data deleting mode and the hands free phone system initialization mode.
| CAUTION | Perform the diagnosis with the vehicle stopped. Perform STEP2 if necessary. |
| STEP | MODE | Description |
|---|---|---|
| STEP 1 | Self-diagnosis | The self-diagnosis mode performs the microphone test and the diagnosis of TEL adapter unit, TEL antenna and steering unit, and then reads out the results with the sound and indicates them on the audio screen. |
| STEP 2 | Hands free phone system initialization | Hands free phone system initialization mode can perform the initialization of hands free phone system. |
| Speaker adaptation data deleting | The speaker adaptation data deleting mode can delete the speaker adaptation data. |
SELF-DIAGNOSIS RESULTS
Self-diagnosis mode reads out the self-diagnosis results and indicates DTC on the audio screen.
Note. Error count is read out simultaneously when reading out the DTC name. The errors are read out continuously when some errors occur at the same time. The DTC displays are combined and displayed. For example, DTC 01100 is displayed when DTC 01000 and DTC 00100 are indicated at the same time.
| DTC (Audio screen) | Failure massage | Possible causes |
|---|---|---|
| DTC 10000 | Internal failure | TEL adapter unit |
| DTC 01000 | Bluetooth antenna open | TEL antenna |
| DTC 00100 | Bluetooth antenna shorted | |
| DTC 00010 | Button ladder A is stuck | Steering switch |
| DTC 00001 | Button ladder B is stuck | |
| DTC 00000 | There are no failure records to report |
SELF-DIAGNOSIS RESULTS
- CHECK FUSE Check for blown fuses. Power source Fuse No. Battery 34 Ignition switch ACC or ON 19 Is inspection result OK? YES: GO TO 2. NO: Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK POWER SUPPLY CIRCUIT Check voltage between NAVI control unit harness connector and ground. Signal name NAVI control unit Probe Condition Reference value Terminal Connector (+) (-) Ignition switch Battery power supply M107 19 20 OFF Battery voltage ACC power supply 7 ACC Is inspection result OK? YES: GO TO 3. NO: Check harness between NAVI control unit and fuse.
- CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect NAVI control unit connector. Check continuity between NAVI control unit harness connector and ground. Signal name Connector Terminal Ignition switch position Continuity Ground M107 20 OFF Existed Is inspection result OK? YES: INSPECTION END NO: Repair harness or connector.
TEL ADAPTER UNIT: Diagnosis Procedure
- CHECK FUSE Check for blown fuses. Power source Fuse No. Battery 34 Ignition switch ACC or ON 19 Is the inspection result normal? YES: GO TO 2. NO: Be sure to eliminate cause of malfunction before installing new fuse.
- CHECK POWER SUPPLY CIRCUIT Check voltage between TEL adapter unit harness connector and ground. Signal name TEL adapter unit Probe Condition Standard Reference value Terminal Connector (+) (-) Ignition switch Battery power supply M127 1 4 OFF 9.0 - 16.0 V Battery voltage ACC power supply 2 ACC 7.0 - 16.0 V Is the inspection result normal? YES: GO TO 3. NO: Check harness between TEL adapter unit and fuse.
- CHECK GROUND CIRCUIT Turn ignition switch OFF. Disconnect TEL adapter unit connector. Check continuity between TEL adapter unit harness connector and ground. Signal name Connector Terminal Ignition switch position Continuity Ground M127 4 OFF Existed Is the inspection result normal? YES: INSPECTION END NO: Repair harness or connector.
Diagnosis Procedure
- CHECK CONTINUITY BETWEEN TEL ADAPTER UNIT AND MICROPHONE CIRCUIT Turn ignition switch OFF. Disconnect TEL adapter unit connector and microphone connector. Check continuity between TEL adapter unit harness connector and microphone harness connector. TEL adapter unit Microphone Continuity Connector Terminal Connector Terminal M127 7 R2 1 Existed 8 2 29 4 Check continuity between TEL adapter unit harness connector and ground. TEL adapter unit Ground Continuity Connector Terminal M127 7 Not existed 29 Is inspection result OK? YES: GO TO 2. NO: Repair harness or connector.
- CHECK VOLTAGE MICROPHONE VCC Connect TEL adapter unit connector. Turn ignition switch ON. Check voltage between TEL adapter unit harness connector and ground. Probe Standard Reference value (Approx.) (+) (-) TEL adapter unit Connector Terminal Connector Terminal M127 29 M127 8 4.7 - 5.3 V 5.0 V Is inspection result OK? YES: GO TO 3. NO: Replace TEL adapter unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S04270942432012120600000) ".
- CHECK MICROPHONE SIGNAL Turn ignition switch OFF. Connect microphone connector. Turn ignition switch ON. Check signal between TEL adapter unit harness connector. Probe Condition Standard Reference value (+) (-) TEL adapter unit Connector Terminal Connector Terminal M127 7 M127 8 Give a voice. Wave form synchronized with voice is input. Is inspection result OK? YES: Replace TEL adapter unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S04270942432012120600000) ". NO: Replace microphone. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S27970088242012120600000) ".
- CHECK CONTINUITY CONTROL SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect TEL adapter unit connector. Check continuity between TEL adapter unit harness connector and ground. TEL adapter unit Ground Standard Continuity Connector Terminals M127 23 3.1 V or less Existed 24 27 Is the inspection result normal? YES: Replace TEL adapter unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S04270942432012120600000) ". NO: Repair harness or connector.
- CHECK CONTINUITY WOOFER AMP. ON SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect NAVI control unit connector and woofer connector. Check continuity between NAVI control unit harness connector and woofer harness connector. NAVI control unit Woofer Continuity Connector Terminal Connector Terminal M107 1 B74 4 Existed Check continuity between woofer harness connector and ground. Woofer Ground Continuity Connector Terminal B74 4 Not existed Is inspection result OK? YES: GO TO 2. NO: Repair harness or connector.
- CHECK VOLTAGE WOOFER AMP. ON SIGNAL Connect NAVI control unit connector Turn ignition switch ON. Check voltage between NAVI control unit harness connector and ground. Probe Reference value (Approx.) (+) (-) NAVI control unit Connector Terminal Connector Terminal M107 1 M107 20 12.0 V Is inspection result OK? YES: Replace woofer. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S07137665452012120600000) ". NO: Replace NAVI control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S36975327102012120600000) ".
- CHECK STEERING SWITCH SIGNAL A CIRCUIT Disconnect NAVI control unit connector and spiral cable connector. Check continuity between NAVI control unit harness connector and spiral cable harness connector. NAVI control unit Spiral cable Continuity Connector Terminal Connector Terminal M107 6 M33 24 Existed Check continuity between NAVI control unit harness connector and ground. NAVI control unit Ground Continuity Connector Terminal M107 6 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
- CHECK SPIRAL CABLE Check spiral cable. Is the inspection result normal? YES: GO TO 3. NO: Replace spiral cable. Refer to " «EXPLODED VIEW»(ref-516437-S25896410182012120600000) ".
- CHECK NAVI CONTROL UNIT VOLTAGE Connect NAVI control unit connector and spiral cable connector. Turn ignition switch ON. Check voltage between NAVI control unit harness connector. Probe Reference value (Approx.) (+) (-) NAVI control unit Connector Terminal Connector Terminal M107 6 M107 15 5.0 V Is the inspection result normal? YES: GO TO 4. NO: Replace NAVI control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S36975327102012120600000) ".
- CHECK STEERING SWITCH Turn ignition switch OFF. Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-516456-S41087515062012120600000) ". Is the inspection result normal? YES: INSPECTION END NO: Replace steering switch. Refer to " «EXPLODED VIEW»(ref-516456-S25987544912012120600000) ".
Component Inspection
Measure the resistance between the steering switch connector.
Scheme 42
| Steering switch | Condition | Resistance (Approx.) ohms | |
|---|---|---|---|
| Terminal | Terminal | ||
| 14 | 17 | Switch ON | 709 - 737 |
| SEEK DOWN switch ON | 315 - 327 | ||
| SEEK UP switch ON | 119 - 123 | ||
| SOURCE switch ON | 0 | ||
| 15 | Switch ON | 315 - 327 | |
| VOL UP switch ON | 119 - 123 | ||
| VOL DOWN switch ON | 0 | ||
RESISTANCE SPECIFICATIONS
- CHECK STEERING SWITCH SIGNAL B CIRCUIT Disconnect NAVI control unit connector and spiral cable connector. Check continuity between NAVI control unit harness connector and spiral cable harness connector. NAVI control unit Spiral cable Continuity Connector Terminal Connector Terminal M107 16 M33 31 Existed Check continuity between NAVI control unit harness connector and ground. NAVI control unit Ground Continuity Connector Terminal M107 16 Not existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
- CHECK SPIRAL CABLE Check spiral cable. Is the inspection result normal? YES: GO TO 3. NO: Replace spiral cable. Refer to " «EXPLODED VIEW»(ref-516437-S25896410182012120600000) ".
- CHECK NAVI CONTROL UNIT VOLTAGE Connect NAVI control unit connector and spiral cable connector. Turn ignition switch ON. Check voltage between NAVI control unit harness connector. Probe Reference value (Approx.) (+) (-) NAVI control unit Connector Terminal Connector Terminal M107 16 M107 15 5.0 V Is the inspection result normal? YES: GO TO 4. NO: Replace NAVI control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S36975327102012120600000) ".
- CHECK STEERING SWITCH Turn ignition switch OFF. Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-516456-S25185090932012120600000) ". Is the inspection result normal? YES: INSPECTION END NO: Replace steering switch. Refer to " «EXPLODED VIEW»(ref-516456-S25987544912012120600000) ".
Measure the resistance between the steering switch connector.
| Steering switch | Condition | Resistance (Approx.) ohms | |
|---|---|---|---|
| Terminal | Terminal | ||
| 14 | 17 | Switch ON | 709 - 737 |
| SEEK DOWN switch ON | 315 - 327 | ||
| SEEK UP switch ON | 119 - 123 | ||
| SOURCE switch ON | 0 | ||
| 15 | Switch ON | 315 - 327 | |
| VOL UP switch ON | 119 - 123 | ||
| VOL DOWN switch ON | 0 | ||
RESISTANCE SPECIFICATIONS
- CHECK STEERING SWITCH SIGNAL GROUND CIRCUIT Disconnect NAVI control unit connector and spiral cable connector. Check continuity between NAVI control unit harness connector and spiral cable harness connector. NAVI control unit Spiral cable Continuity Connector Terminal Connector Terminal M107 15 M33 33 Existed Is the inspection result normal? YES: GO TO 2. NO: Repair harness or connector.
- CHECK SPIRAL CABLE Check spiral cable. Is the inspection result normal? YES: GO TO 3. NO: Replace spiral cable. Refer to " «EXPLODED VIEW»(ref-516437-S25896410182012120600000) ".
- CHECK GROUND CIRCUIT Connect NAVI control unit connector. Check continuity between NAVI control unit harness connector and ground. NAVI control unit Ground Continuity Connector Terminal M107 15 Existed Is the inspection result normal? YES: GO TO 4. NO: Replace NAVI control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-516456-S36975327102012120600000) ".
- CHECK STEERING SWITCH Turn ignition switch OFF. Check steering switch. Refer to " «COMPONENT INSPECTION»(ref-516456-S21216810902012120600000) ". Is the inspection result normal? YES: INSPECTION END NO: Replace steering switch. Refer to " «EXPLODED VIEW»(ref-516456-S25987544912012120600000) ".
Measure the resistance between the steering switch connector.
| Steering switch | Condition | Resistance (Approx.) ohms | |
|---|---|---|---|
| Terminal | Terminal | ||
| 14 | 17 | Switch ON | 709 - 737 |
| SEEK DOWN switch ON | 315 - 327 | ||
| SEEK UP switch ON | 119 - 123 | ||
| SOURCE switch ON | 0 | ||
| 15 | Switch ON | 315 - 327 | |
| VOL UP switch ON | 119 - 123 | ||
| VOL DOWN switch ON | 0 | ||
RESISTANCE SPECIFICATIONS
Trouble Diagnosis Chart by Symptom
| Symptoms | Check items | Possible malfunction location/Action to take |
|---|---|---|
| Does not recognize cellular phone connection. | Repeat the registration of cellular phone. | TEL adapter unit |
| Hands-free phone cannot be established. | TEL adapter unit power supply and ground circuit. Refer to " TEL ADAPTER UNIT: DIAGNOSIS PROCEDURE ". Control signal circuit Refer to " DIAGNOSIS PROCEDURE ". AV communication circuit between NAVI control unit and TEL adapter unit. | |
| The other party's voice cannot be heard by hands-free phone. | Audio system sound is normal. | Sound signal (TEL voice, TEL guidance) circuit |
| Audio system sound does not sound. | Refer to " SYMPTOM TABLE ". | |
| Originating sound is not heard by the other party with handsfree phone communication. | Voice recognition function is normal. | TEL adapter unit |
| Voice recognition function does not work. | Microphone signal circuit. Refer to " DIAGNOSIS PROCEDURE ". |