| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM000000T5F00CX |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): PROBLEM SYMPTOMS TABLE; 2007 MY LX470 [08/2006 - ] | ||
PROBLEM SYMPTOMS TABLE
Troubleshoot the circuits for the applicable problem symptom in the order given in the chart below. Proceed to the page for each circuit.
HINT:
- If the instruction "Proceed to next circuit inspection shown on problem symptoms table" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue the check.
- If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check the power seat control ECU as the last step. Replace if necessary.
|
Symptom |
Suspected area |
See page |
|---|---|---|
|
All the motors do not function when operating manually. |
1. There is an object that blocks the infrared signal under the seat. |
- |
|
2. Dirt on the signal reception part and emission part in the power seat control ECU or in the driver's power seat control switch. |
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3. Power seat control ECU power source circuit |
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4. Power seat power source circuit |
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5. Power seat control switch circuit |
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6. Power seat control ECU and driver's power seat control switch |
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All the motors do not function by manual operation (except for slide operation). |
1. There is an object that blocks the infrared signal under the seat. |
- |
|
2. Affected by the parts installed later (ornamental neon tube). |
- |
|
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3. Dirt on the signal reception part and emission part in the power seat control ECU or in the driver's power seat control switch. |
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4. Power seat control ECU and driver's power seat control switch. |
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One function does not operate by manual operation only. |
1. Power seat motor circuit |
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2. Power seat control ECU |
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The movement is intermittent (all the motors) when operating manually. |
1. Power seat control ECU power source circuit |
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2. Power seat power source circuit |
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3. Power seat control switch circuit |
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4. Power seat control ECU and driver's power seat control switch |
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The movement is intermittent (all the motors except for slide operation) when operating manually. |
1. Affected by the parts installed later (remote controller using infrared signal). |
- |
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2. Power seat control ECU and driver's power seat control switch |
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The movement is intermittent (a part of motors) when operating manually. |
1. Position sensor power source circuit |
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2. Position sensor circuit |
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3. Power seat motor circuit |
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4. Power seat control ECU and driver's power seat control switch |
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The movement is different from the switch operation when operating manually. |
1. There is an object that blocks the infrared signal under the seat. |
- |
|
2. Dirt on the signal reception part and emission part in the power seat control ECU or in the driver's power seat control switch. |
|
|
|
3. Power seat control ECU and driver's power seat control switch |
|
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|
Motors move without any switch operation. |
1. Driver's power seat control switch |
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2. Power seat control ECU |
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The motors do not stop during manual operation. |
1. There is an object that blocks the infrared signal under the seat. |
- |
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2. Switch knob |
- |
|
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3. Driver's power seat control switch |
|
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4. Power seat control ECU |
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Return function does not operate or operates a little, then stops (all return functions). |
1. Power seat control ECU power source circuit |
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2. Power seat power source circuit |
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3. Ignition switch circuit |
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4. Position sensor power source circuit |
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5. Position sensor circuit |
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6. Driving position memory switch circuit |
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7. Power seat control ECU |
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8. Body ECU (Main) |
- |
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Driving position memory system does not operate. |
1. Driving position memory switch circuit |
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2. Power seat control ECU |
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3. Body ECU (Main) |
- |
![2007 MY LX470 [08/2006 - ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): ON-VEHICLE CLEANING](../../../../stylegraphics/info.gif "2007 MY LX470 [08/2006 - ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): ON-VEHICLE CLEANING")
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