How do I fix code P1631?
After the security light goes off, turn the ignition to the Off position, then leave it for 20 seconds. Try to start the vehicle again and leave the key in the On position. For some vehicles, the battery and security light may blink for several seconds before shutting off. The security light will remain in On.
How do I fix code p1626?
- Turn OFF the ignition.
- Disconnect the BCM connector. Refer to Body Control Module Replacement in Body Control System.
- Turn ON the ignition leaving the engine OFF.
- Measure the voltage at the fuel enable circuit at the BCM harness connector using the DMM J 39200 .
What is code P1638?
Make: Chevrolet Code: P1638 Definition: Generator ‘F’ Terminal Circuit Malfunction Description: No CKP, CMP or Generator codes set, key on and the PCM detected the PWM signal was from 10-40% for over 6 seconds; or with the engine speed under 3000 rpm, the PCM detected the PWM signal was less than 5% for 6 seconds.
What is Engine code P1626?
Error Code P1626 is defined as Theft Deterrent Fuel Enable Signal Not Received. This error code is a manufacturer-specific trouble code, meaning it does not apply to all vehicles makes. Rather, it applies only to specific vehicle makes, such as Chevrolet.
Where is the theft deterrent module location?
Passkey II (Resistive Chip Ignition Key) – In the Passkey II system, the Theft Deterrent Module (TDM) function is stored in the Body Control Module (BCM) and validates the resistive chip in the ignition key.
What is generator F terminal?
The F in the description means the Field Coil Control circuit is at fault. The Field Coil is arguably the most recognizable from its windings, which are visible through the vent holes of most alternators. Each time the engine runs, the voltage level and continuity of the generator field circuit is monitored by the PCM.
What is code P1518?
|P1518 Meaning One passage is always open, and the other is opened and closed with a butterfly valve plate. This will allow a vacuum to vent from the actuator and the butterfly valve plates to open. The Diagnostic Trouble Code (DTC) sets when the IMRC is commanded close, but the IMRC monitor indicates open.
What is Vtd fuel disable?
Definition. The VTD (Vehicle Theft Deterrent) system is included in the vehicle’s BCM (Body Control Module). Having this condition, the PCM will inhibit fuel delivery, disable the starter unit a valid theft deterrent password XXXXX XXXXX.
What is P0625 code?
P0625 code definition When code P0625 is stored it means that a problem in the generator field control circuit has been detected by either the PCM or a supporting control module.
What is a generator field control?
[′jen·ə‚rād·ər ′fēld kən‚trōl] (electricity) Method of regulating the output voltage of a generator by controlling the voltage which excites the field of the generator.
What kind of car does the p1631 code mean?
Rather, it applies only to specific vehicle makes, such as Chevrolet, GMC, BMW, Chrysler/Dodge/Jeep, Citroen/Peugeot, Daewoo, Ford, Jaguar, Mazda, Opel, Saab, Saturn, Volkswagen/Audi, Volvo, etc. Specification on the definition, troubleshooting, and repairs still vary from one make and model to another.
How much does it cost to repair a p1631 Chevy?
The cost to diagnose the P1631 CHEVROLET code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
What is the BCM code for the PassLock sensor?
B2947: SHORT TO GROUND ON THE PASSLOCK SENSOR POWER CIRCUIT The BCM sets this code if it sees a short to ground on the Passlock sensor power circuit (white wire) for one second. The test occurs with the ignition switch in the ACCESSORY, ON, or START position.