I was doing an I/M Readiness Test on my Jeep, and saw 'HRT' as one of the failed systems. I've tried googling but have only gotten unclear answers. Does anyone know what this is?
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WhiplashGamz
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I was wondering whether this should have been HTR for an oxygen sensor heater.
I then found this from here -
I/M Readiness
| Abbr. | Definition |
|---|---|
| MIL | Malfunction Indicator Lamp |
| DTC | Diagnostic Trouble Codes |
| MIS | Misfire |
| FUE | Fuel System |
| CCM | Comprehensive Component Monitor |
| CAT | Catalyst |
| HCAT | Heated Catalyst |
| IGN | Ignition |
| Pd DTC | Pending Diagnostic Trouble Codes |
| EVAP | Evaporative System |
| AIR | Intake Air System |
| O2S | Oxygen Sensor |
| HRT | Oxygen sensor heater |
| EGR | Exhaust Gas Recirculation |
It would fit that the O2 sensor and O2 heater both have red crosses against them.
marcelm
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HandyHowie
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