Category: Cadillac

P1417 Cadillac Port Air Relief Circuit Malfunction 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 ,…

P1409 Cadillac EVR Control Circuit Malfunction Possible causes EGRVR circuit open. VPWR open to EGRVR solenoid. EGRVR circuit short to VPWR or GND. Damaged EGRVR solenoid. Damaged PCM. Tech description The EGR vacuum regulator solenoid resistance is between 26 and 40 ohms. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1409 Cadillac…

P1410 Cadillac EGR Valve Position Sensor Circuit Malfunction Possible causes – EGR Valve Position Sensor Tech description Usually replacing the EGR Valve Position Sensor takes care of the problem. The sensor is located on top of the EGR valve. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1410 Cadillac Description The EGR…

P1411 Cadillac SAI System Incorrect Downstream Flow Detected 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…

P1413 Cadillac SAI System Monitor Circuit Low Input 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…

P1405 Cadillac EGR Temperature Incorrect Possible causes – Faulty Differential Pressure Feedback Electronic (DPFE) sensor (EGR pressure sensor)– Plugged or damaged EGR tube– Differential Pressure Feedback Electronic (DPFE) sensor harness is open or shorted– Differential Pressure Feedback Electronic (DPFE) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)…

P1406 Cadillac EGR Valve Pintle Position Circuit Possible causes – Faulty Exhaust Gas Recirculation (EGR) valve– Carbon blockage of the pintle Tech description The P1406 Cadillac code means that the EGR valve is 10% of the expected position by the Powertrain Control Module (PCM), usually caused by carbon built up n the EGR valve. Start…

P1407 Cadillac EGR Air Intrusion In Exhaust Supply To EGR Valve 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 Catera , Cadillac DTS , Cadillac…

P1408 Cadillac EGR Flow Out Of Self Test Range Possible causes For vacuum activated systems, see the possible causes for DTC P0401 Cadillac. For electric motor systems, see the possible causes for DTC P0400 Cadillac. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1408 Cadillac Description This test is performed during the…

P1401 Cadillac EGR Temperature Sensor Possible causes – EGR Temperature Sensor harness is open or shorted– EGR Temperature Sensor circuit poor electrical connection– Faulty EGR Temperature Sensor– Malfunction of EGR function, EGRC-BPT valve or EGRC-solenoid valve– Blocked EGR passages What about the obd code? An excessively low voltage from the Exhaust Gas Recirculation (EGR) temperature…

P1402 Cadillac EGR Function Open Possible causes – The EGR volume control valve circuit harness is open or shorted– EGR volume control valve leaking or stuck open– Faulty EGR temperature sensor Tech description Start by cleaning the EGR valve, if the code persist it may be necessary to replaced the EGR Valve Symptoms – Engine…

P1403 Cadillac Exhaust Gas Recirculation System Valve 1 Possible causes – Faulty Diagnostic Module Tank Leakage (DMTL)– Diagnostic Module Tank Leakage harness is open or shorted– Diagnostic Module Tank Leakage circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1403 Cadillac Description The heated DMTL (Diagnostic Module Tank Leakage)…

P1404 Cadillac Exhaust Gas Recirculation Closed Position Performance Possible causes – Faulty Exhaust Gas Recirculation (EGR) valve– Carbon blockage of the pintle Tech description On some models, there is a service bulletin for the P1404 Cadillac code that suggest reprogramming the Powertrain Control Module (PCM) to repair the problem. What about the obd code? While…

P1397 Cadillac Wheel Speed Sensor 2, G-Sensor Circuit Low Voltage 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 Catera , Cadillac DTS , Cadillac DeVille…

P1398 Cadillac Wheel Speed Sensor 2 – G – Sensor Circuit High Voltage 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 Catera , Cadillac DTS…

P1399 Cadillac Wheel Speed Sensor 2, G-Sensor Circuit Intermittent Possible causes – Valve clearance out of range– Blocked EGR (exhaust gas recirculation) Passages Tech description Adjusting the valves will usually fix this problem. What about the obd code? The control module monitors the crankshaft speed and has detected a misfire condition Symptoms – Engine Light…

P1400 Cadillac Manifold Differential Pressure sensor condition Possible causes – Differential Pressure Feedback Electronic Sensor harness is open or shorted– Differential Pressure Feedback Electronic Sensor circuit poor electrical connection– Faulty Differential Pressure Feedback Electronic Sensor Tech description There is a factory service bulletin for the following Lincoln models: 2001-2002 Lincoln Town CarLincoln Factory Service Bulletin…

P1393 Cadillac Wheel Speed Sensor 1 – G – Sensor Circuit High Voltage 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 Catera , Cadillac DTS…

P1394 Cadillac Wheel Speed Sensor 1 – G – Sensor Circuit Intermittent 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 Catera , Cadillac DTS ,…

P1395 Cadillac Wheel Speed Sensor 2 – G – Sensor Circuit 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 Catera , Cadillac DTS , Cadillac…