Category: Cadillac

P0384 Cadillac Glow Plug Control Module Circuit High Possible causes – Faulty Glow Plug– Glow Plug harness is open or shorted– Glow Plug circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– The engine may be harder to start P0384 Cadillac Description The glow plug system is used to…

P0385 Cadillac Crankshaft Position Sensor B 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…

P0386 Cadillac Crankshaft Position Sensor B 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…

P0377 Cadillac Timing Reference High Resolution Signal B Too Few Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? Some high resolution pulses are missing from the optical…

P0378 Cadillac Timing Reference High Resolution Signal B Intermittent/Erratic Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? Some high resolution pulses are intermittent from the optical sensor…

P0379 Cadillac Timing Reference High Resolution Signal B No Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? There are no high resolution pulses from the optical sensor…

P0380 Cadillac Glow Plug/Heater Circuit A Malfunction Possible causes – Faulty Glow Plug– Glow Plug harness is open or shorted– Glow Plug circuit poor electrical connection What about the obd code? – The glow plugs are commanded OFF and the glow plug feedback is more than 2 volts. or– The glow plugs are commanded on…

P0381 Cadillac Glow Plug/Heater Indicator Circuit Malfunction Possible causes – Faulty Glow Plug– Glow Plug harness is open or shorted– Glow Plug circuit poor electrical connection What about the obd code? – The glow plugs are commanded OFF and the glow plug feedback is more than 2 volts. or– The glow plugs are commanded on…

P0376 Cadillac Timing Reference High Resolution Signal B Too Many Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? There are too many high resolution pulses from the…

P0372 Cadillac Timing Reference High Resolution Signal A Too Few Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? Some high resolution pulses are missing from the optical…

P0373 Cadillac Timing Reference High Resolution Signal A Intermittent/Erratic Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? Some high resolution pulses are intermittent from the optical sensor…

P0374 Cadillac Timing Reference High Resolution Signal A No Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? There are no high resolution pulses from the optical sensor…

P0375 Cadillac Timing Reference High Resolution Signal B Malfunction Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? Some high resolution pulses are missing from the optical sensor to…

P0367 Cadillac Camshaft Position Sensor B Circuit Low Bank 1 Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery What about the obd code? The camshaft position sensor signal is sent the Engine…

P0368 Cadillac Camshaft Position Sensor B Circuit High Bank 1 Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery What about the obd code? The camshaft position sensor signal sent to the Engine…

P0369 Cadillac Camshaft Position Sensor B Circuit Intermittent Possible causes – Faulty Camshaft Position Sensor– Camshaft Position Sensor harness is open or shorted– Camshaft Position Sensor circuit poor electrical connection– Faulty starter motor– Starting system circuit– Dead (Weak) battery What about the obd code? The camshaft position sensor signal sent to the Engine Control Module(ECM)…

P0370 Cadillac Timing Reference High Resolution Signal A Malfunction Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? A number of high resolution pulses missing per every 8 cam…

P0371 Cadillac Timing Reference High Resolution Signal A Too Many Pulses Possible causes – Timing Reference Optical Sensor harness is open or shorted– Timing Reference Optical Sensor circuit poor electrical connection– Faulty Timing Reference Optical Sensor– Damaged Powertrain Control Module (PCM) What about the obd code? There are too many high resolution pulses from the…

P0362 Cadillac Ignition Coil 12 Primary/Secondary Circuit Malfunction Possible causes – Faulty Ignition Coil 12– Ignition Coil 12 harness is open or shorted– Ignition Coil 12 circuit poor electrical connection– Faulty Engine Control Module (ECM) What about the obd code? Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails…

P0363 Cadillac Misfire Detected Fueling Disabled Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Cadillac Vehicle:Cadillac CTS Coupe, Cadillac CTS-V Coupe , Cadillac Eldorado , Cadillac Escalade EXT , Cadillac ATS , Cadillac CTS , Cadillac CTS Sedan , Cadillac CTS Sport Sedan , Cadillac CTS-V , Cadillac CTS-V Sedan , Cadillac…