OEM 2000 GMC Savana 3500 Engine Control Module

2000 GMC Savana 3500 Parts Questions & Experts Answers

• Q: How should the Engine Control Module be serviced, and what steps are necessary for replacement or reprogramming on 2000 GMC Savana 3500?

  A: Service of the vehicle control module (VCM) requires either repurchase or programming of the unit without touching connector pins or soldered components to avoid electrostatic discharge (ESD) damage. The new vessel control module needs to receive the Knock Sensor module for transfer when vcm replacement occurs. Both modules require programming and must complete passlock reprogramming and ckp system variation learn procedures to prevent dtc p1336 from appearing. First disconnect the negative Battery Cable before you separate the spring retainer then pull out the vcm at an angle from the bracket and finish by disconnecting the vcm harness connectors. The procedure for vcm replacement begins by removing access cover screws followed by access cover removal before you use fingers carefully to squeeze the retaining clip until the Knock Sensor module becomes loose and you should move it to a safe area to protect it from damage. First verify that the new vcm service number matches the original one before using a socket to align Knock Sensor module notches and pressing carefully on the ends until they click. Reinstall the access cover with its screws set to 4.8 n.m torque (42 lb inch), restore vcm harness connector connections before inserting the vcm into bracket installation. Finish with retaining spring attachment and negative Battery Cable reconnection and vcm programming.