SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 770 (ENGINE CONTROL SYSTEM - DIAGNOSIS)CIRCUIT INSPECTIONDTC P0550: POWER STEERING PRESSURE SENSOR/SWITCH CIRCUIT, DTC P0552: POWER STEERING PRESSURE SENSOR/SWITCH CIRCUIT LOW INPUT, DTC P0553: POWER STEERING PRESSURE SENSOR/SWITCH CIRCUIT HIGH INPUTINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check power steering oil pressure sensor. 

    PREPARATION: 

    1. Connect the hand-held tester or the OBD II scan tool to the DLC3.
    2. Start the engine.
    3. Push the hand-held tester or the OBD II scan tool main switch ON.
    4. Enter following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL / PS SINGAL.

    CHECK: 

    Read signal displayed on the hand-held tester or the OBD II scan tool.

    RESULT: 

    Fig 1: Power Steering Oil Pressure Sensor Condition Chart
    G01496418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Check for intermittent problems (See  PRE-CHECK   ). 
    2. NG: Go to next step. 
  2. Check for open in harness and connector between engine ECU and power steering oil pressure sensor (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG: Repair or replace harness or connector. 
    2. OK: Replace power steering oil pressure sensor (See  REMOVAL  ). 
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.