P0604 LEXUS Internal Control Module Random Access Memory Error

Possible causes – Faulty Engine Control Module (ECM)– Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the ECM….

P0606 LEXUS ECM Processor Failure

Possible causes – Faulty Engine Control Module (ECM)– Engine Control Module (ECM) Harness power supply circuit is open or shorted– Engine Control Module (ECM) Programming Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the ECM….

P1122 LEXUS Coolant Flow Control Valve Position Sensor Circuit Low

Possible causes – Faulty Coolant Flow Control Valve Position Sensor– Coolant Flow Control Valve Position Sensor harness is open or shorted– Coolant Flow Control Valve Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1123 LEXUS Coolant Flow Control Valve Position Sensor Circuit High

Possible causes – Faulty Coolant Flow Control Valve Position Sensor– Coolant Flow Control Valve Position Sensor harness is open or shorted– Coolant Flow Control Valve Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0336 LEXUS Crankshaft Position Sensor A Circuit Range/Performance

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can…

P0335 LEXUS Crankshaft Position Sensor A Circuit

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can…

P0338 LEXUS Crankshaft Position Sensor A Circuit High Input

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can…

P0339 LEXUS Crankshaft Position Sensor A Circuit Intermittent

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can…

P0337 LEXUS Crankshaft Position Sensor A Circuit Low Input

Possible causes – Faulty crankshaft position sensor– Crankshaft position sensor harness is open or shorted– Crankshaft position sensor circuit poor electrical connection– Signal plate may be damage– Starter motor may be faulty– Starting system circuit– Dead or weak battery Tech description Sometimes and in some models, low battery voltage or a weak starter can can…

P0575 LEXUS Cruise Control Input Circuit

Possible causes – Faulty Cruise Control– Cruise Control harness is open or shorted– Cruise Control circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Cruise control system inoperative