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 Circulation Pump harness connector.
Measure the resistance of the Circulation Pump Control circuit between the
Automatic Temperature Control (ATC) C1 harness connector and the Circulation
Pump harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Circulation Pump Control circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
NOTE: Check connectors - Clean/repair as necessary.
Disconnect the Circulation Pump harness connector.
Measure the resistance between ground and the Ground circuit.
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 Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
153
HEATING & A/C
CIRC PUMP CONTROL HIGH OR OPEN (ACTIVE) —
Continued