HOW TO PROCEED WITH TROUBLESHOOTING
- VEHICLE BROUGHT TO WORKSHOP
- CUSTOMER PROBLEM ANALYSIS
- CHECK AND CLEAR DTCs Refer to the diagnostic check/clear (See «DTC CHECK / CLEAR»(ref-282157-S28285292902008032900000) ).
- PROBLEM SYMPTOM CONFIRMATION SYMPTOM DOES NOT OCCUR (Go to step 5) SYMPTOM OCCURS (Go to step 6 )
- SYMPTOM SIMULATION
- CHECK DTC DTC IS OUTPUT (Go to step 10 ) DTC IS NOT OUTPUT (Go to step 7)
- CHECK IF THE SAME SYMPTOM APPEARS IN THE NAVIGATION SYSTEM Refer to the navigation system (See «PROBLEM SYMPTOMS TABLE»(ref-282157-S06383147532008032900000) ). THE SYMPTOM APPEARS (FOLLOW THE NAVIGATION SYMPTOM CHART TO PERFORM TROUBLESHOOTING) THE SYMPTOM DOES NOT APPEAR (Go to step 8)
- PROBLEM SYMPTOMS TABLE Refer to the «PROBLEM SYMPTOMS TABLE»(ref-282158-S05020010102008032900000) . THE CORRESPONDING SYMPTOM EXISTS (Go to step 10 ) THE CORRESPONDING SYMPTOM DOES NOT EXIST (Go to step 9)
- BASED ON THE MALFUNCTION SYMPTOM, PERFORM TROUBLESHOOTING BELOW Terminals of ECU (See «TERMINALS OF ECU»(ref-282158-S24800330522008032900000) ).
- ADJUST, REPAIR OR REPLACE
- CONFIRMATION TEST NEXT: END
PROBLEM SYMPTOMS TABLE
- Before inspecting the suspected areas listed in the table below, check the fuse and relay.
- Before inspecting the suspected areas listed in the table below, check the DTCs.
- Methods used to verify the cause of the problem are listed in order of probability in the suspected area column.
REAR VIEW MONITOR SYSTEM
| Symptom | Suspected area | See information |
|---|---|---|
| When shift lever is in R position, rear view monitor image is not displayed (Screen is not black). | 1. Reverse signal circuit | REVERSE SIGNAL CIRCUIT |
| 2. Proceed to "Display Signal Circuit between Radio and Navigation Assembly and Television Camera Assembly" | DISPLAY SIGNAL CIRCUIT BETWEEN RADIO AND NAVIGATION ASSEMBLY AND TELEVISION CAMERA ASSEMBLY | |
| 3. Radio and navigation assembly | NAVIGATION RECEIVER | |
| When shift lever is in R position, rear view monitor image is not displayed (Screen is black). | 1. Radio and navigation assembly power source circuit | RADIO AND NAVIGATION ASSEMBLY POWER SOURCE CIRCUIT |
| 2. Proceed to "Display Signal Circuit between Radio and Navigation Assembly and Television Camera Assembly" | DISPLAY SIGNAL CIRCUIT BETWEEN RADIO AND NAVIGATION ASSEMBLY AND TELEVISION CAMERA ASSEMBLY | |
| 3. Radio and navigation assembly | NAVIGATION RECEIVER | |
| When shift lever is not in R position, rear view monitor image is displayed. | 1. Reverse signal circuit | REVERSE SIGNAL CIRCUIT |
| 2. Radio and navigation assembly | NAVIGATION RECEIVER | |
| Problem with the rear view monitor image (color, disorder of picture). | 1. Proceed to "Display Signal Circuit between Radio and Navigation Assembly and Television Camera Assembly" | DISPLAY SIGNAL CIRCUIT BETWEEN RADIO AND NAVIGATION ASSEMBLY AND TELEVISION CAMERA ASSEMBLY |
| 2. Radio and navigation assembly | NAVIGATION RECEIVER |
SYMPTOM
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- TELEVISION CAMERA ASSEMBLY Disconnect the T10 camera connector. Measure the voltage and resistance of each terminal of the wire harness side connector. TERMINAL DESCRIPTION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified value CGND (T10-3) - Body ground W - Body ground Ground Always Below 1 ohms CB+ (T10-4) - CGND (T10-3) R - W Power source Ignition switch ON, shift lever R position Approx. 6 V If the result is not as specified, there may be a malfunction on the wire harness side. Reconnect the T10 camera connector. Measure the voltage and frequency of each terminal of the connector. TERMINAL DESCRIPTION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified value CV+ (T10-2) - CV- (T10-1) B - Shielded Display signal Ignition switch ON, shift lever R position See «WAVEFORM 1»(ref-282158-S05204994122008032900000) If the result is not as specified, the camera may have a malfunction. Reference: Oscilloscope waveform Waveform 1 WAVEFORM 1 REFERENCE Item Content Measure terminal CV+ - CV- Measure set 0.2 V/DIV, 0.2 μS/DIV. Condition Ignition switch: ON, Shift lever: R position
- RADIO AND NAVIGATION ASSEMBLY (See «TERMINALS OF ECU»(ref-282157-S08124102562008032900000) )
- VEHICLE BROUGHT TO WORKSHOP
- CUSTOMER PROBLEM ANALYSIS
- CHECK INITIAL CHECK FUNCTION
- PROBLEM SYMPTOMS TABLE THE CORRESPONDING SYMPTOM EXISTS (Go to step 6 ) THE CORRESPONDING SYSTEM DOES NOT EXIST (Go to step 5)
- BASED ON THE MALFUNCTION SYMPTOM, PERFORM THE TROUBLESHOOTING BELOW Operation check (See «OPERATION CHECK»(ref-282158-S36575989762008032900000) ). Terminals of ECU (See «TERMINALS OF ECU»(ref-282158-S30744900752008032900000) ).
- ADJUST, REPAIR OR REPLACE
- CONFIRMATION TEST NEXT: END
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- DETECTION RANGE MEASUREMENT AND INDICATOR CHECK Turn the IG switch ON. Move the shift lever to the R position (when the back sonar and rear clearance sonar is checked). With front clearance sonar: Move the shift lever to the N position (when the front clearance sonar is checked). NOTE: Apply the parking brake securely so that the vehicle does not move. Turn the clearance sonar main switch ON. Move a ø 60 mm (2.36 in.) pole around the sensor to measure the detection range of the sensor. NOTE: The measured detection range is for the ø 60 mm (2.36 in.) pole. The detection range for walls and other obstacle is different. Check the indicator and the buzzer sounding condition when the back sonar sensor detects an obstacle. Operation condition OPERATION CONDITION Ignition switch Clearance sonar main switch Shift position ON ON R position HINT: Since sound waves are used for the detection range measurement, the detection range may vary a little due to the outside air temperature. Check the indicator and the buzzer sounding condition when the rear clearance sonar sensor detects an obstacle. Operation condition OPERATION CONDITION Ignition switch Clearance sonar main switch Shift position ON ON R position HINT: Since sound waves are used for the detection range measurement, the detection range may vary a little due to the outside air temperature. With front clearance sonar: Check the indicator and the buzzer sounding condition when the front clearance sonar sensor detects an obstacle. Operation condition OPERATION CONDITION Ignition switch Clearance sonar main switch Shift position Vehicle speed ON ON Except P position 10 km/h (6 mph) or less HINT: Since sound waves are used for the detection range measurement, the detection ranges may vary a little due to the outside air temperature.
- CHECK INITIAL CHECK FUNCTION Check the initial check function for the LED and buzzer. Turn the ignition switch and clearance main switch ON. The LED are buzzer will operate for about 1 second +- 0.3 seconds, regardless of shift lever position or vehicle speed. The system will then begin normal detection operation. If the LED or buzzer is faulty, the relevant LED and buzzer operate as shown in the illustration below. HINT: If each LED, power indicator and buzzer are not turned on continuously when power is turned on, the wire is broken. After the system returns to be normal, it conducts normal operation. Check the initial check function for the sensor. For vehicles with 4 sensors: Approximately 0.4 seconds after the ignition switch has been turned to the ON position, and the clearance sonar main switch has been turned on, all sensors will be checked by the system. The sensor check operation will continue for 5 seconds +/-1 second. Even if one or more sensors are anomalous, the sensor check operation will be halted after 5 seconds +/-1 second have elapsed. For vehicles with 6 sensors: Approximately 0.4 seconds after the ignition switch has been turned to the ON position, and the clearance sonar main switch has been turned on, all sensors will be checked by the system. After 1 second +/- 0.3 seconds have elapsed, the check operation for all of the sensors will stop when a vehicle speed of over 10 km/h is detected. When the vehicle has been shifted from the P position, the system will change to obstacle detecting operation according to the shift position. If there are no changes in the conditions, such as those listed above (speed or shifter position), the sensor check operation will be halted after 5 seconds +/-1 second have elapsed. If one or more sensors are anomalous, check operation for all of the sensors will continue (sensors will continue transmitting). If the sensor is found to have an anomaly due to an open circuit or freezing for approximately 5 seconds or more, indications as shown in the following illustration appear. HINT: After the system returns to normal, it conducts normal operation. If one of the back sonar sensors is faulty, the other sensors will not be used to detect obstacles.
HINT
- Before performing verification listed in the table below, check the fuse and relay.
- Check the circuits for each problem symptom in the order given in the table below, and proceed to the relevant information.
CLEARANCE SONAR SYSTEM
| Symptom | Suspected area | See information |
|---|---|---|
| Entirely inoperative (Self check does not function). | 1. Power source of clearance warning ECU circuit | CLEARANCE WARNING ECU POWER SOURCE CIRCUIT |
| 2. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| 3. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| Only back sonar does not function (Self check functions normally). | 1. Back sonar sensor LH circuit | BACK SONAR SENSOR LH CIRCUIT |
| 2. Back sonar sensor RH circuit | BACK SONAR SENSOR RH CIRCUIT | |
| 3. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| 4. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| Only clearance sonar does not functions (Self check functions normally). | 1. Front clearance sonar LH circuit ( (1) ) | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT |
| 2. Front clearance sonar RH circuit ( (1) ) | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT | |
| 3. Rear clearance sonar LH circuit | FRONT CLEARANCE SONAR SENSOR RH CIRCUIT | |
| 4. Rear clearance sonar RH circuit | REAR CLEARANCE SONAR SENSOR LH CIRCUIT | |
| 5. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| 6. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| Although detection can be done, no buzzer sounds sometimes (Back sonar, Rear clearance sonar). | 1. No. 2 clearance warning buzzer | NO. 2 CLEARANCE WARNING BUZZER CIRCUIT |
| 2. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| Although detection can be done, no buzzer sounds sometimes (Front clearance sonar). | 1. No. 1 clearance warning buzzer ( (1) ) | NO. 1 CLEARANCE WARNING BUZZER CIRCUIT |
| 2. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| Although detection can be done, the indicator does not light sometimes. | 1. Indicator circuit | INDICATOR CIRCUIT |
| 2. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| 3. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| "Disconnected" or "Frozen" is displayed in the self check function. | 1. Back sonar sensor LH circuit | BACK SONAR SENSOR LH CIRCUIT |
| 2. Back sonar sensor RH circuit | BACK SONAR SENSOR RH CIRCUIT | |
| 3. Front clearance sonar LH circuit ( (1) ) | FRONT CLEARANCE SONAR SENSOR LH CIRCUIT | |
| 4. Front clearance sonar RH circuit ( (1) ) | FRONT CLEARANCE SONAR SENSOR RH CIRCUIT | |
| 5. Rear clearance sonar LH circuit | REAR CLEARANCE SONAR SENSOR LH CIRCUIT | |
| 6. Rear clearance sonar RH circuit | REAR CLEARANCE SONAR SENSOR RH CIRCUIT | |
| 7. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| 8. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| 9. Sensor is wetted or frozen | ||
| The system operates with the shift lever not in the R position, or does not operate with the shift lever in the R position (Back sonar and rear clearance sonar). | 1. Park / Neutral position switch circuit | PARK / NEUTRAL POSITION SWITCH CIRCUIT |
| 2. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| The system operates with the shift lever in the P position, or does not operate with the shift lever not in the P position (Front clearance sonar). | 1. Park / Neutral position switch circuit | PARK / NEUTRAL POSITION SWITCH CIRCUIT |
| 2. Clearance warning ECU ( (1) ) | CLEARANCE WARNING ECU | |
| Detection can be done although the vehicle speed is 10 km/h (6 mph) or more. | 1. Speed signal circuit | SPEED SIGNAL CIRCUIT |
| 2. Clearance warning ECU ( (2) ) | CLEARANCE WARNING ECU | |
| Buzzer volume is too low. | Adjust buzzer volume | ADJUSTMENT |
| (1) with Front Clearance Sonar (2) without Front Clearance Sonar | ||
| (1) | With Front Clearance Sonar |
| (2) | Without Front Clearance Sonar |
SYMPTOM
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- CLEARANCE WARNING ECU TERMINAL DESCRIPTION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification RL (C9-3) - E (C9-7) R-B - W-B Reverse signal Ignition switch ON, shift lever in other than R position Below 1 V RL (C9-3) - E (C9-7) R-B - W-B Reverse signal Ignition switch ON, shift lever in R position 10 to 14 V CBZ (C9-4) - E (C9-7) ( (1) ) Y-R - W-B Clearance warning buzzer Clearance sonar sounding (when the front clearance sonar senses something) Pulse generation Refer to a waveform 1 L5 (C9-5) - E (C9-7) L-B - W-B Back sonar indicator Back sonar indicator OFF 10 to 14 V L5 (C9-5) - E (C9-7) L-B - W-B Back sonar indicator Back sonar indicator ON Below 3 V L3 (C9-6) - E (C9-7) O - W-B Rear clearance sonar indicator LH Rear clearance sonar indicator LH OFF 10 to 14 V L3 (C9-6) - E (C9-7) O - W-B Rear clearance sonar indicator LH Rear clearance sonar indicator LH ON Below 3 V E (C9-7) - Body ground W-B - Body ground Ground Always Below 1 V SPD (C9-8) - E (C9-7) V-W - W-B Speed signal Ignition switch ON, drive wheels are turned slowly Pulse generation E1 (C9-9) - E (C9-7) ( (1) ) P-L - W-B Front clearance sonar sensor ground Always Below 1 V S5 (C9-10) - E (C9-7) G-O - W-B Back sonar sensor RH signal When signals are transmitted from the ECU to the back sonar sensor RH Pulse generation Refer to b waveform 2 S3 (C9-11) - E (C9-7) G-B - W-B Rear clearance sonar sensor LH signal When signals are transmitted from the ECU to the rear clearance sonar sensor LH Pulse generation Refer to c waveform 3 S1 (C9-12) - E (C9-7) G-W - W-B Rear clearance sonar sensor RH signal When signals are transmitted from the ECU to the rear clearance sonar sensor RH Pulse generation Refer to c waveform 3 +B (C9-13) - E (C9-7) LG-B - W-B Power source Ignition switch ON, clearance sonar main switch OFF Below 1 V +B (C9-13) - E (C9-7) LG-B - W-B Power source Ignition switch ON, clearance sonar main switch ON 10 to 14 V PL (C9-15) - E (C9-7) L-Y - W-B Parking position signal Shift lever in P position 10 to 14 V BBZ (C9-16)- E (C9-7) R - W-B Clearance warning buzzer Clearance sonar sounding (when the back sonar or rear clearance sonar senses something) Pulse generation Refer to a waveform 1 L6 (C9-17) - E (C9-7) BR-W - W-B Power indicator Ignition switch ON, clearance sonar main switch OFF 10 to 14 V L6 (C9-17) - E (C9-7) BR-W - W-B Power indicator Ignition switch ON, clearance sonar main switch ON Below 3 V L4 (C9-18) - E (C9-7) ( (1) ) P - W-B Front clearance sonar indicator LH Front clearance sonar indicator LH OFF 10 to 14 V L4 (C9-18) - E (C9-7) ( (1) ) P - W-B Front clearance sonar indicator LH Front clearance sonar indicator LH ON Below 3 V L2 (C9-19) - E (C9-7) ( (1) ) V-R - W-B Front clearance sonar indicator RH Front clearance sonar indicator RH OFF 10 to 14 V L2 (C9-19) - E (C9-7) ( (1) ) V-R - W-B Front clearance sonar indicator RH Front clearance sonar indicator RH ON Below 3 V L1 (C9-20) - E (C9-7) R-L - W-B Rear clearance sonar indicator RH Rear clearance sonar indicator RH OFF 10 to 14 V L1 (C9-20) - E (C9-7) R-L - W-B Rear clearance sonar indicator RH Rear clearance sonar indicator RH ON Below 3 V E2 (C9-21) - E (C9-7) LG - W-B Rear clearance sonar and back sonar sensor ground Always Below 1 V S6 (C9-22) - E (C9-7) G-Y - W-B Back sonar sensor LH signal When signals are transmitted from the ECU to the back sonar sensor LH Pulse generation Refer to b waveform 2 S4 (C9-23) - E (C9-7) ( (1) ) V - W-B Front clearance sonar sensor LH signal When signals are transmitted from the ECU to the front clearance sonar sensor LH Pulse generation Refer to c waveform 3 S2 (C9-24) - E (C9-7) ( (1) ) L - W-B Front clearance sonar sensor RH signal When signals are transmitted from the ECU to the front clearance sonar sensor RH Pulse generation Refer to c waveform 3 (1) with Front Clearance Sonar
- AIR CONDITIONER AMPLIFIER ASSEMBLY TERMINAL DESCRIPTION Symbols (Terminal No.) Wiring Color Terminal Description Condition Specification BK (A10-4) - Body ground ( (2) ) L-B - Body ground Back sonar indicator Back sonar indicator OFF 10 to 14 V BK (A10-4) - Body ground ( (2) ) L-B - Body ground Back sonar indicator Back sonar indicator ON Below 3 V OP (A10-5) - Body ground ( (2) ) BR-W - Body ground Power indicator Ignition switch ON, clearance sonar main switch OFF 10 to 14 V OP (A10-5) - Body ground ( (2) ) BR-W - Body ground Power indicator Ignition switch ON, clearance sonar main switch ON Below 3 V Z- (A10-15) - Body ground ( (2) ) R - Body ground Clearance warning buzzer Clearance sonar sounding (when the back sonar or rear clearance sonar senses something) Pulse generation Refer to a waveform 1 SK (A10-13) - Body ground ( (2) ) LG-B - Body ground Power source Ignition switch ON, clearance sonar main switch OFF Below 1 V SK (A10-13) - Body ground ( (2) ) LG-B - Body ground Power source Ignition switch ON, clearance sonar main switch ON 10 to 14 V FR (A10-16) - Body ground ( (1) ) ( (2) ) V-R - Body ground Front clearance sonar indicator RH Front clearance sonar indicator RH OFF 10 to 14 V FR (A10-16) - Body ground ( (1) ) ( (2) ) V-R - Body ground Front clearance sonar indicator RH Front clearance sonar indicator RH ON Below 3 V FL (A10-17) - Body ground ( (1) ) ( (2) ) P - Body ground Front clearance sonar indicator LH Front clearance sonar indicator LH OFF 10 to 14 V FL (A10-17) - Body ground ( (1) ) ( (2) ) P - Body ground Front clearance sonar indicator LH Front clearance sonar indicator LH ON Below 3 V RR (A10-3) - Body ground ( (2) ) R-L - Body ground Rear clearance sonar indicator RH Rear clearance sonar indicator RH OFF 10 to 14 V RR (A10-3) - Body ground ( (2) ) R-L - Body ground Rear clearance sonar indicator RH Rear clearance sonar indicator RH ON Below 3 V RL (A10-18) - Body ground ( (2) ) O - Body ground Rear clearance sonar indicator LH Rear clearance sonar indicator LH OFF 10 to 14 V RL (A10-18) - Body ground ( (2) ) O - Body ground Rear clearance sonar indicator LH Rear clearance sonar indicator LH ON Below 3 V BK (A11-8) - Body ground ( (3) ) L-B - Body ground Back sonar indicator Back sonar indicator OFF 10 to 14 V BK (A11-8) - Body ground ( (3) ) L-B - Body ground Back sonar indicator Back sonar indicator ON Below 3 V OP (A11-5)-Body ground ( (3) ) BR-W - Body ground Power indicator Ignition switch ON, clearance sonar main switch OFF 10 to 14 V OP (A11-5) - Body ground ( (3) ) BR-W - Body ground Power indicator Ignition switch ON, clearance sonar main switch On Below 3 V Z- (A11-12) - Body ground ( (3) ) R - Body ground Clearance warning buzzer Clearance sonar sounding (when the back sonar or rear clearance sonar senses something) Pulse generation Refer to a waveform 1 SK (A11-1) - Body ground ( (3) ) LG-B - Body ground Power source Ignition switch ON, clearance sonar main switch OFF Below 1 V SK (A11-1) - Body ground ( (3) ) LG-B - Body ground Power source Ignition switch ON, clearance sonar main switch ON 10 to 14 V FR (A11-3) - Body ground ( (1) ) ( (3) ) V-R - Body ground Front clearance sonar indicator RH Front clearance sonar indicator RH OFF 10 to 14 V FR (A11-3) - Body ground ( (1) ) ( (3) ) V-R - Body ground Front clearance sonar indicator RH Front clearance sonar indicator RH ON Below 3 V FL (A11-4) - Body ground ( (1) ) ( (3) ) P - Body ground Front clearance sonar indicator LH Front clearance sonar indicator LH OFF 10 to 14 V FL (A11-4) - Body ground ( (1) ) ( (3) ) P - Body ground Front clearance sonar indicator LH Front clearance sonar indicator LH ON Below 3 V RR (A11-9) - Body ground ( (3) ) R-L - Body ground Rear clearance sonar indicator RH Rear clearance sonar indicator RH OFF 10 to 14 V RR (A11-9) - Body ground ( (3) ) R-L - Body ground Rear clearance sonar indicator RH Rear clearance sonar indicator RH ON Below 3 V RL (A11-10) - Body ground ( (3) ) O - Body ground Rear clearance sonar indicator LH Rear clearance sonar indicator LH OFF 10 to 14 V RL (A11-10) - Body ground ( (3) ) O - Body ground Rear clearance sonar indicator LH Rear clearance sonar indicator LH ON Below 3 V (1) with Front Clearance Sonar (2) Manual A/C (3) Auto A/C Reference: waveform 1 HINT: Terminal: CBZ - E, BBZ - E, Z- - Body ground Gauge set: 2 V/DIV., 500 μs/DIV. Condition: When the clearance sonar is detecting an object. Reference: waveform 2 HINT: Terminal: S5 - E, S6 - E Gauge set: 2 V/DIV., 100 μs/DIV. Condition: When the back sonar is not detecting an object. Reference: waveform 3 HINT: Terminal: S3 - E, S1 - E, S4 - E, S2 - E Gauge set: 2 V/DIV., 100 μs/DIV. Condition: When the clearance sonar is not detecting an object.
Scheme 69
- ADJUST BUZZER VOLUME Turn the knob on the clearance warning ECU to adjust the volume.