How to Troubleshoot the A/T System
How to Troubleshoot Circuits at the PCM Connectors
NOTE: The PCM overwrites data and monitors the EVAP system for up to about 30 minutes after the ignition switch is turned to LOCK (0). Jumping the SCS line after turning the ignition switch to LOCK (0) cancels this function. Disconnecting the PCM during this function, without jumping the SCS line first, can damage the PCM.
  1. Jump the SCS line with the HDS.
  1. Disconnect PCM connectors A, B, and C.
    NOTE: PCM connectors A, B, and C have symbols (A=□, B=△, C=○) embossed on them for identification.