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Possible Causes

Possible Causes
CABIN HEATER 2 RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
CABIN HEATER 2 RELAY CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT
PTC 2 RELAY
HVAC MODULE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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