FixVault
Home › Oldsmobile › 1996 › Eighty-Eight Base › Repair and Diagnosis › Body & Frame › Door Locks › Anti-Theft System › Testing › Pass-Key II(R) System Testing › Engine Cranks But Does Not Start

Engine Cranks But Does Not Start

  1. Perform PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK. Turn ignition off. Disconnect PASS-KEY II(R) decoder module connector. Turn ignition on. Using DVOM, measure voltage between PASS-KEY II(R) decoder module connector terminal A3 (Dark Blue wire) and ground.
  2. If voltage is about 5 volts, go to next step. If voltage is not about 5 volts, check for open or short to ground in Dark Blue wire between PASS-KEY II(R) decoder module and Powertrain Control Module (PCM). Also, check for poor connections at PCM. Repair or replace as necessary and repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK. If Dark Blue wire and connections are okay, diagnose possible faulty PCM. See appropriate TESTS W/CODES article.
  3. Turn ignition off. Reconnect PASS-KEY II(R) decoder module connector. Turn ignition on. Using DVOM, measure voltage between PASS-KEY II(R) decoder module connecter terminal A3 (Dark Blue wire) and ground. If voltage is about 2.5 volts, PASS-Key II(R) system is functioning properly. If voltage is not about 2.5 volts, check for poor connections at PASS-KEY II(R) decoder module. If connections are okay, replace PASS-KEY II(R) decoder module. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.
About FixVault