TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
NOTE: Check connectors - Clean/repair as necessary.
Disconnect the Automatic Temperature Control (ATC) C1 harness connector.
Disconnect the Cabin Heater or Heater Booster harness connector.
Measure the resistance of the Cabin Heater Control circuit between the Automatic
Temperature Control (ATC) C1 harness connector and the Cabin Heater or Heater
Booster harness connector (as applicable).
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Automatic Temperature Control (ATC) in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Cabin Heater Control circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
149
HEATING & A/C
CABIN HEATER CONTROL HIGH OR OPEN (ACTIVE) —
Continued