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.
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HOMESERVICE MANUALSTOYOTA2005MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEM (SFI) (1ZZ-FE (FWD)) - DIAGNOSTICSSFI SYSTEM (1ZZ-FE (FF))DTC P0115, P0117, P0118: ENGINE COOLANT TEMPERATURE CIRCUIT LOW/HIGH INPUTTYPICAL MALFUNCTION THRESHOLDS
2005 Toyota Matrix XR, FWD, Standard
Typical Malfunction Thresholds
2005 Toyota Matrix XR, FWD, StandardSECTION Typical Malfunction Thresholds
P0115:
TYPICAL MALFUNCTION THRESHOLDS (DTC P0115)
| ECT sensor resistance | Less than 79 Ω, or more than 156 kΩ |
P0117:
TYPICAL MALFUNCTION THRESHOLDS (DTC P0117)
| ECT sensor resistance [Engine coolant temperature] | Less than 79 Ω [More than 140°C (284°F)] |
P0118:
TYPICAL MALFUNCTION THRESHOLDS (DTC P0118)
| ECT sensor resistance [Engine coolant temperature] | More than 156 kΩ [Less than -40°C (-40°F)] |
RENDER: 1.0x
NO RELATED
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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.