Problem Symptoms Table
Perform troubleshooting of the circuits for the applicable problem symptom in the order given in the chart below. Proceed to the page located for each circuit.
NOTE:
- If the instruction "Proceed to next circuit inspection shown on problem symptom 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 and replace the Seat Position Control ECU as the last step.
PROBLEM SYMPTOMS
| Symptom/Suspect Area | See | |
|---|---|---|
| Both Manual & Return Functions Do Not Operate (All Functions) | ||
| 1. +B Power Source Circuit | CIRCUIT INSPECTION | |
| 2. Power Seat Control Switch Circuit | POWER SEAT CONTROL SWITCH CIRCUIT | |
| 3. Motor Circuit | MOTOR CIRCUIT | |
| 4. Power Seat Circuit ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |
| Both Manual & Return Functions Do Not operate (One Function Only) | ||
| 1. Motor Circuit | MOTOR CIRCUIT | |
| 2. Power Seat Circuit ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |
| One Or All Functions Do Not Operate For Manual Operation Only | ||
| 1. Power Seat Control Switch Circuit | POWER SEAT CONTROL SWITCH CIRCUIT | |
| 2. Power Seat Circuit ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |
| Memory Function Does Not Operate | ||
| 1. Power Seat Memory Switch Circuit | POWER SEAT CONTROL SWITCH CIRCUIT | |
| 2. Ignition Switch Circuit | IGNITION SWITCH CIRCUIT | |
| 3. Power Seat Circuit ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |
| Return Operation Does Not Stop When Brake Pedal Is Depressed | ||
| 1. Stop Light Switch Circuit | STOP LIGHT SWITCH CIRCUIT | |
| 2. Power Seat Circuit ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |
| Only Return Function Doe Not Operate Or Operates A Little, Then Stops (All Return Functions) | ||
| 1. Power Seat Memory Switch Circuit | SEAT MEMORY SWITCH | |
| 2. ECU Power Source Circuit | ECU POWER SOURCE CIRCUIT | |
| 3. Position Sensor Power Source Circuit | POSITION SENSOR POWER SOURCE CIRCUIT | |
| 4. Power Seat Circuit ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |
| Only Return Function Doe Not Operate Or Operates A Little, Then Stops (Only One Return Function) | ||
| 1. Position Sensor Circuit | POSITION SENSOR CIRCUIT | |
| 2. Power Seat Control ECU | HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE | |