WebOct 11, 2013 · CODE P1637 - GENERATOR L TERMINAL CIRCUIT MALFUNCTION CONDITIONS. CODE P1638 - GENERATOR F TERMINAL CIRCUIT MALFUNCTION CONDITIONS. POSSIBLE CAUSES FAULTY GENERATOR WHICH IS ALTERNATOR.CHECK GENERATOR POWER FEED WIRES AND CHECK … WebMay 17, 2013 · P1637: Generator L-Terminal Circuit Attached Files start after 0411 swap.hpl (10.1 KB, 6 views) 3bar e85.cfg (2.6 KB, 2 views) 98 - z/28 Twin TC76's l forged 347 l boost cam l moser 9" l th400 07.5 - GMC Sierra 2500HD D-Max daily 09 - G8 GT wifes daily 05-11-2013 #2 98Camarod Advanced Tuner Join Date Dec 2007 Posts 248
2003 DTC List Corvette Forum : DigitalCorvettes.com Corvette …
WebJul 14, 2014 · DTC P1637 Generator L-Terminal Circuit DTC P1638 Generator F-Terminal Circuit DTC P1652 Powertrain Induced Chassis Pitch Output Circuit DTC P1810 TFP Valve Position Switch Circuit DTC P2066 Fuel Level Sensor "B" Performance DTC P2067 Fuel Level Sensor "B" Circuit Low DTC P2068 WebSep 4, 2024 · Code P1637 Buick Description The L-terminal circuit from the generator is a discrete circuit (a discrete circuit has no splices and only one source and one destination) into the Powertrain Control Module ( PCM ). The PCM applies ignition voltage to the generator L terminal circuit. for sale websites
Code P1637 Buick: Generator L-Terminal Circuit - AutoCodes.com
WebJul 14, 2014 · DTC P1637 Generator L-Terminal Circuit DTC P1638 Generator F-Terminal Circuit DTC P1639 5 Volt Reference 2 Circuit DTC P1652 Powertrain Induced Chassis Pitch Output Circuit DTC P1810 TFP Valve Position Switch Circuit DTC P1860 TCC PWM Solenoid Circuit Electrical DTC P1870 Transmission Component Slipping WebOct 31, 2024 · What your getting is DTC P1637 Generator L-Terminal Circuit Here's a write up from another forum that explains what this does and how to trouble shoot it. All contents taken from a FSM: http://www.gearchatter.com/viewtopic10125.php I double checked and pulled on it and it was solid. Reply Like 05-18-2024, 01:48 AM # 5 … WebSep 23, 2024 · Generator L Terminal P1637? / Possible alternator problem The powertrain control module (PCM) uses the generator turn on signal circuit to control the load of the generator on the engine. A high side driver in the PCM applies a voltage to the voltage regulator. This signals the voltage regulator to turn the field circuit ON and OFF. digital outdoor christmas light timers