What does P1637 mean?
When the Powertrain Control Module (PCM) detects a fault (circuit shorted to ground, or circuit shorted to a voltage), the P1637 code will set.
What is generator l terminal circuit?
Circuit Description The L-terminal circuit from the generator is a discrete circuit into the powertrain control module (PCM). The PCM supplies the ignition voltage to the generator lamp feed. This ignition voltage is pulled low by the generator once the ignition switch supplies ignition 1 voltage.
What does the p1637 code mean on a Chevrolet?
When the Powertrain Control Module (PCM) detects a fault (circuit shorted to ground, or circuit shorted to a voltage), the P1637 code will set. 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 ).
What does p1637 mean in Powertrain Control Module?
P1637 Meaning. 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.
How much does it cost to diagnose a p1637 code?
The cost of diagnosing the P1637 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
What causes a p1637 generator to short out?
P1637 Possible Causes 1 Faulty Generator (Alternator) 2 Generator harness is open or shorted 3 Generator circuit poor electrical connection 4 Powertrain Control Module (PCM) programming 5 Faulty Powertrain Control Module (PCM)
When the Powertrain Control Module (PCM) detects a fault (circuit shorted to ground, or circuit shorted to a voltage), the P1637 code will set. 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 ).
P1637 Meaning. 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.
The cost of diagnosing the P1637 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
P1637 Possible Causes 1 Faulty Generator (Alternator) 2 Generator harness is open or shorted 3 Generator circuit poor electrical connection 4 Powertrain Control Module (PCM) programming 5 Faulty Powertrain Control Module (PCM)