Possible Causes
| Possible Causes |
|---|
| (C266) MODE DOOR DRIVER 1 CIRCUIT OPEN OR HIGH RESISTANCE |
| (C266) MODE DOOR DRIVER 1 CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| (C66) MODE DOOR DRIVER 2 CIRCUIT OPEN OR HIGH RESISTANCE |
| (C66) MODE DOOR DRIVER 2 CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| (C235) MODE DOOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| (C235) MODE DOOR SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| (C34) SIGNAL RETURN CIRCUIT OPEN OR HIGH RESISTANCE |
| MODE DOOR ACTUATOR |
| HVAC MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to HVAC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .