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2007 Jeep Grand Cherokee Laredo 3.7L MIL Lamp on
codes are active 2 min's after starting engine. no other [...] i jumper signal feed to signal return the voltage is 2.49 and that is [...] ok and heater control line produces same voltage on all [...] the ones with a problem and without. swapped sensors around...
FIX posted 8/8/2014
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Message Closed w/FIX
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Related Documents & Media | VIN | 1J8GR48K37 |
| Engine | 3.7 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage |
| P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2007 Jeep Grand Cherokee Laredo
| VIN | 1J8GR48K37 |
| Engine | 3.7 L / 6 cyl / GAS |
| Trans | 5-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0138 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit High Voltage |
| P0155 | Heated Oxygen Sensor (Bank 2 Sensor 1) Heater Circuit Malfunction |
Video