Audio System Symptom Troubleshooting - Rearview camera image does not change when selecting different views
Rearview camera image does not change when selecting different views
NOTE:
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Check the connectors for poor connections or loose terminals. |
1. |
Problem verification:
Problem verification
?1. |
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode. |
?2. |
Shift the transmission to R position/mode. |
?3. |
Operate the audio unit to see if the rearview image changes between the wide view, the normal view, and the top down view in this order. | |
Does the rearview camera image change properly?
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Intermittent failure, the system is OK at this time.? |
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The failure is duplicated, go to step 2. |
2. |
Shorted wire check (CAMERA BIT0 line, CAMERA BIT1 line):
Shorted wire check (CAMERA BIT0 line, CAMERA BIT1 line)
?1. |
Shift the transmission to P position/mode or N position/mode. |
?2. |
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode. |
?3. |
Disconnect the following connectors.
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?4. |
Check for continuity between test points 1 and 2.
Test condition |
IG LOCK (0) or OFF mode |
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Audio unit connector G (24P): disconnected |
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Rearview camera 8P connector: disconnected |
Test circuit |
CAMERA BIT0 |
Test point 1 |
Audio unit connector G (24P) No. 5 (YEL) |
Test point 2 |
Body ground | |
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Test circuit |
CAMERA BIT1 |
Test point 1 |
Audio unit connector G (24P) No. 18 (PUR) |
Test point 2 |
Body ground | |
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Is there continuity?
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Repair a short to body ground in the wire(s) between the audio unit and the rearview camera.? |
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The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted to ground. Go to step 3. |
3. |
Shorted wire check (CAMERA BIT0 line to CAMERA BIT1 line):
Shorted wire check (CAMERA BIT0 line to CAMERA BIT1 line)
?1. |
Check for continuity between test points 1 and 2.
Test condition |
IG LOCK (0) or OFF mode |
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Audio unit connector G (24P): disconnected |
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Rearview camera 8P connector: disconnected |
Test circuit |
CAMERA BIT0, CAMERA BIT1 |
Test point 1 |
Audio unit connector G (24P) No. 5 (YEL) |
Test point 2 |
Audio unit connector G (24P) No. 18 (PUR) | |
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Is there continuity?
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Repair a short in the wire(s) between the audio unit and the rearview camera.? |
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The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted. Go to step 4. |
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The CAMERA BIT0 and the CAMERA BIT1 wires are not shorted. Go to step 5. |
4. |
Open wire check (CAMERA BIT0 line, CAMERA BIT1 line):
Open wire check (CAMERA BIT0 line, CAMERA BIT1 line)
?1. |
Check for continuity between test points 1 and 2.
Test condition |
IG LOCK (0) or OFF mode |
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Audio unit connector G (24P): disconnected |
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Rearview camera 8P connector: disconnected |
Test circuit |
CAMERA BIT0 |
Test point 1 |
Audio unit connector G (24P) No. 5 (YEL) |
Test point 2 |
Rearview camera 8P connector No. 4 (YEL) | |
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Test circuit |
CAMERA BIT1 |
Test point 1 |
Audio unit connector G (24P) No. 18 (PUR) |
Test point 2 |
Rearview camera 8P connector No. 8 (PUR) | |
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Is there continuity?
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The CAMERA BIT0 and the CAMERA BIT1 wires are OK. Go to step 6. |
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Repair an open in the wire(s) between the audio unit and the rearview camera.? |
5. |
Open wire check (CAMERA BIT0 line, CAMERA BIT1 line):
Open wire check (CAMERA BIT0 line, CAMERA BIT1 line)
?1. |
Check for continuity between test points 1 and 2.
Test condition |
IG LOCK (0) or OFF mode |
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Audio unit connector G (24P): disconnected |
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Rearview camera 8P connector: disconnected |
Test circuit |
CAMERA BIT0 |
Test point 1 |
Audio unit connector G (24P) No. 5 (YEL) |
Test point 2 |
Rearview camera 8P connector No. 3 (YEL) | |
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Test circuit |
CAMERA BIT1 |
Test point 1 |
Audio unit connector G (24P) No. 18 (PUR) |
Test point 2 |
Rearview camera 8P connector No. 4 (PUR) | |
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Is there continuity?
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The CAMERA BIT0 and the CAMERA BIT1 wires are OK. Go to step 6. |
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Repair an open in the wire(s) between the audio unit and the rearview camera.? |
6. |
Rearview camera check (substitution):
Rearview camera check (substitution)
?2. |
Reconnect all the connectors, and recheck. | |
Does the symptom go away?
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