phat albert Posted May 24, 2004 Report Share Posted May 24, 2004 i checked for codes last night this is what i found PCM P0146 CURRENT PCM P0147 CURRENT P0603 HISTORY MSM B0856 " " MSM B1983 " " MMM B2144 " " what do they mean and what is the difference between current and history thanks for you help Link to comment Share on other sites More sharing options...
Ranger Posted May 24, 2004 Report Share Posted May 24, 2004 History codes are just that- historical. Whatever caused the code to set has cleared. May have been intermittent. Ignore it unless it sets again. History codes will be deleted automatically after 50 ignition cycles without failing. B0856 - Battery 2 Out of Range B1983 - Device Power Circuit Low B2144 - Left Front Mirror Vertical Position Sensor Circuit Low P0603 - Control Module Long Term Memory Reset Current means that the bank one sensor 3 is currently malfunctioning. If the PCM gets good readings from the sensor it will go from current to history after 3 ignition cycles without failing. P0146 - Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity Bank 1 Sensor 3 P0147 - Heated Oxygen Sensor (HO2S) Heater Performance Bank 1 Sensor 3 Bank one sensor 3 is the "aft cat" sensor. Link to comment Share on other sites More sharing options...
phat albert Posted May 24, 2004 Author Report Share Posted May 24, 2004 can i change the sensor myself or does it have to go into the dealership Link to comment Share on other sites More sharing options...
Ranger Posted May 25, 2004 Report Share Posted May 25, 2004 If you can change a spark plug, you can probably change the O2 sensor. It may require a special socket, I'm not sure, never had to do one...... yet. Link to comment Share on other sites More sharing options...
jinxed45 Posted May 25, 2004 Report Share Posted May 25, 2004 phat albert, i got the pcm P0146 code as well.. i'm actually gonna try to fix it myself pretty soon. i'll let you know how it goes, never done it before. so i can tell you if it's easy to figure out, etc. Link to comment Share on other sites More sharing options...
phat albert Posted May 26, 2004 Author Report Share Posted May 26, 2004 thank you i appreciate it Link to comment Share on other sites More sharing options...
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