I have eleven DTCs all at once.

Question

I have a 2001 F150 4.6L auto. This truck suddenly started running rough. Cleared all codes and re-scanned after starting truck. The codes are as follows; P0135, P0155, P0443, P0740, P0743, P0758, P1451, P1460, P1747, and P1760.
My question is; is it normal to have this many DTCs come up at once? Could my PCM be faulty causing this problem?

Answer 1

P0135 - 02 sensor heater circuit malfunction (bank 1 sensor 1)

P0155 -02 sensor heater circuit malfunction (bank 2 sensor 1)

P0443 Evaporative emission control system purge control valve circuit malfunction

P0740 Torque convertor circuit malfunction

P0743 Torque convertor circuit electrical

P0758 Shift solenoid B electrical / 2-3 shift solenoid electrical

P1451 Evaporative emission control system vent control valve circuit

P1460 Wide open throtttle A/C cut off relay circuit

P1747 Pressure control solenoid A short circuit

P1760 Pressure control solenoid A Short circuit

When the ECM produces codes that can not be together this becomes rationality and irrationality, Rationality and irrationality are caused by mechanical conditions , an example are TPS (throttle position sensor) code and a MAF (mass airflow ) code this is irrationailty a closer inspection would reveal a vacuum leak at the intake manifold and the correction of this vacuum leak would be the solution and solve both these codes. In your condition this is a electrical problem , The PCM has a relay and it is fused protected, start by inspecting the fuse for this and replace or swap out the PCM relay and retest.You have a short somewhere,check the 02 sensor harness . 02 sensor that are sensor 1 are engine management sensor check the harness to it may have shorted to the exhaust.