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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 239 (ENGINE CONTROL SYSTEM SELF-DIAGNOSTICS - 4 CYL (PZEV))
2004 Toyota Matrix XR, FWD, Standard
Section 239 (Engine Control System Self-Diagnostics - 4 CYL (PZEV))
2004 Toyota Matrix XR, FWD, StandardSECTION Section 239 (Engine Control System Self-Diagnostics - 4 CYL (PZEV))
WARNING: This page is about a different car, the 2003 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Description
- Self-Diagnostic System
- Testing Procedure
- System Overview
- Two-Trip Detection Logic
- Freeze Frame Data
- Malfunction Indicator Light Inspection
- Retrieving Diagnostic Trouble Codes
- Clearing Diagnostic Trouble Codes
- Engine Control Module Location
- Fail-Safe Chart
- Intermittent Problems Check (Hand-Held Tester Only)
- Data List
- Active Test
- Terms Definition
- Mode 06 Data
- Basic Inspection
- Readiness Monitor Drive Pattern
- Test Drive Confirmation
- Programming
- Scan Tool Problems
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank No. 1 Sensor No. 1) & DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank No. 1 Sensor No. 1)
- DTC P0037, DTC P0038, DTC P0043 & DTC P0044
- DTC P0136, DTC P0137 & DTC P0138
- DTC P0142: Oxygen Sensor Circuit Malfunction (Bank No. 1 Sensor No. 3)
- DTC P0143: Oxygen Sensor Circuit Low Voltage (Bank No. 1 Sensor No. 3) & DTC P0144: Oxygen Sensor Circuit High Voltage (Bank No. 1 Sensor No. 3)
- DTC P0171: System Too Lean (Bank No. 1) & DTC P0172: System Too Rich (Bank No. 1)
- DTC P0325, DTC P0327 & DTC P0328
- DTC P0420: Catalyst System Efficiency Below Threshold (Bank No. 1)
- DTC P0441, DTC P0442, DTC P0446 & DTC P0456
- DTC P0451, DTC P0452 & DTC P0453
- DTC P2004: Intake Manifold Runner Control Stuck Open (Bank No. 1) & DTC P2006: Intake Manifold Runner Control Stuck Closed (Bank No. 1)
- DTC P2009: Intake Manifold Runner Control Circuit Low (Bank No. 1) & DTC P2010: Intake Manifold Runner Control Circuit High (Bank No. 1)
- DTC P2014, DTC P2016 & DTC P2017
- DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank No. 1 Sensor No. 1) & DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank No. 1 Sensor No. 1)
- DTC P2237, DTC P2238, DTC P2239, DTC P2251, DTC P2252 & DTC P2253
- DTC P2423: TOYOTA HCAC System (Bank No. 1)
- DTC P2A00: A/F Sensor Circuit Slow Response (Bank No. 1 Sensor No. 1)
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.