Manual Climate Control

Vacuum System Appears to be Working Improperly

Possible Source(s):
A/C vacuum tank hose.
- A/C vacuum reservoir tank and bracket.
- Vacuum control motor.

Action(s) to Take:
- Go to Pinpoint Test A. A: Vacuum Leak Diagnosis


Manual A/C-Heater Temperature Blend Door Actuator Diagnostics

Possible Source(s):
- Open/shorted circuits.
- Open/shorted temperature blend door actuator.
- Open/shorted control head potentiometer.

Action(s) to Take:
- Go to Pinpoint Test B. B: Elec. Door Actuator Motor Inop, Intermittent, or Improper