Chrysler 2005 Crossfire SRT6 Service Manual page 4171

24 - 42 HEATING & AIR CONDITIONING - ELECTRICAL DIAGNOSTICS
COOLANT CIRCULATION PUMP CIRCUIT (CONTINUED)
2.
MEASURE THE VOLTAGE OF THE COOLANT CIRCULATION PUMP CONTROL CIRCUIT
With the ignition off.
Disconnect the A/C Heater Control Module harness connector.
Note: Check connector - Clean/repair as necessary.
Connect a jumper wire between the terminals in the Coolant Circula-
tion Pump harness connector.
Measure the voltage of the Coolant Circulation Pump Control circuit at
the A/C Heater Control Module harness connector.
Is the voltage above 10 volts?
Yes >> Go to 3
No >> Repair the Coolant Circulation Pump Control circuit for an
open.
Perform BODY VERIFICATION TEST.
3.
MEASURE THE VOLTAGE OF THE COOLANT CIRCULATION PUMP CONTROL CIRCUIT
With the ignition off.
Reconnect the Coolant Circulation Pump harness connector.
Measure the voltage of the Coolant Circulation Pump Control circuit at
the A/C Heater Control Module harness connector.
Is the voltage above 10 volts?
Yes >> Replace the A/C Heater Control Module. (Refer to 24 -
HEATING & AIR CONDITIONING/CONTROLS/HEATER
CONTROL - REMOVAL).
Perform BODY VERIFICATION TEST.
No >> Replace the Coolant Circulation Pump. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/ELECTRIC
COOLANT PUMP - REMOVAL).
Perform BODY VERIFICATION TEST.
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