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2005 Jeep Grand Cherokee Limited 4.7L MIL Lamp on
All four O2 sensor heater circuits flagged a code at the same time. But the MIL has been on for the last year with an EGR code the cust declined to fix. The MIL comes on immediately after the codes are erased. Checked resistance to ground and V drop in com...
Summary posted 7/29/2019
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Related Documents & Media | VIN | 1J8HS58N45 |
| Engine | 4.7 L / 8 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0031 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Low Voltage |
| P0037 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Low Voltage |
| P0051 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Low Voltage |
| P0057 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Low Voltage |
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Vehicle Data
2005 Jeep Grand Cherokee Limited
| VIN | 1J8HS58N45 |
| Engine | 4.7 L / 8 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0031 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Low Voltage |
| P0037 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Low Voltage |
| P0051 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Low Voltage |
| P0057 | Heated Oxygen Sensor (Bank 2 Sensor 2) Heater Circuit Low Voltage |
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