Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Scion xA AutomaticFACTORY OEM SERVICE PROCEDURE
Problem Symptoms Table
PROBLEM SYMPTOMS
| Symptom/Suspected Area | See | |
|---|---|---|
| Engine Does Not Crank (Does Not Start) | ||
| 1. Starter | REMOVAL & INSTALLATION | |
| 2. Starter Relay | REMOVAL & INSTALLATION | |
| 3. Park/Neutral Position Switch | DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) | |
| No Initial Combustion (Does Not Start) | ||
| 1. ECM Power Source Circuit | ECM POWER SOURCE CIRCUIT | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. ECM | REPLACEMENT | |
| No Complete Combustion (Does Not Start) | ||
| 1. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Engine Cranks Normally But Difficult To Start | ||
| 1. Starter Signal Circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| 3. Compression | INSPECTION | |
| Difficult To Start With Cold Engine | ||
| 1. Starter Signal Circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Difficult To Start With Hot Engine | ||
| 1. Starter Signal Circuit | DTC P0617 STARTER RELAY CIRCUIT HIGH | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| High Engine Idle Speed (Poor Idling) | ||
| 1. A/C Signal Circuit (Compressor Circuit) | ON--VEHICLE INSPECTION | |
| 2. ECM Power Source Circuit | ECM POWER SOURCE CIRCUIT | |
| Low Engine Idle Speed (Poor Idling) | ||
| 1. A/C Signal Circuit (Compressor Circuit) | ON--VEHICLE INSPECTION | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Rough Idling (Poor Idling) | ||
| 1. Compression | INSPECTION | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Hunting (Poor Idling) | ||
| 1. ECM Power Source Circuit | ECM POWER SOURCE CIRCUIT | |
| 2. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Hesitation/Poor Acceleration (Poor Driveability) | ||
| 1. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| 2. A/T Faulty | PROBLEM SYMPTOMS TABLE | |
| Surging (Poor Driveability) | ||
| 1. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Engine Stalls Soon After Starting | ||
| 1. Fuel Pump Control Circuit | FUEL PUMP CONTROL CIRCUIT | |
| Engine Stalls During A/C Operation | ||
| 1. A/C Signal Circuit (Compressor Circuit) | ON--VEHICLE INSPECTION | |
| 2. ECM | REPLACEMENT | |
| Unable To Refuel/Difficult To Refuel | ||
| 1. ORVR System | ..... | |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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