Pinpoint Tests: Notes

Power is routed through the transmission solenoid power control relay (inside the PCM) to all transmission solenoids. If the power circuit to the transmission solenoids or the transmission solenoid power control relay fails open, all solenoids are failed electrically off. Check for open, short to ground or the transmission connector disconnected. The transmission solenoid power control relay disables power to the transmission solenoids when certain transmission DTCs are set.

• Carry out KOEO and KOER procedures.
• Retrieve and record all DTCs.
• Repair all non-transmission DTCs first.
• Repair all transmission DTCs second.
• Clear all CMDTCs and attempt to repeat them.
• Repair all CMDTCs.
• If only pass codes are obtained, REFER to: Diagnosis By Symptom  . for further information and diagnosis.