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Symptom: *REAR BLOWER MOTOR SPEEDS INCORRECT - MTC POSSIBLE CAUSES REAR BLOWER REAR CONTROL SWITCH REAR BLOWER MOTOR DRIVER CIRCUIT(S) SHORTED TO GROUND A/C - HEATER CONTROL MODULE REAR BLOWER REAR CONTROL SWITCH REAR BLOWER MOTOR DRIVER CIRCUIT(S) SHORTED TO VOLTAGE REAR BLOWER MOTOR FRONT CONTROL FEED CIRCUIT SHORTED TO VOLTAGE REAR BLOWER DRIVER CKT(S) SHORTED TO REAR BLOWER FRONT CONTROL FEED CKT REAR BLOWER MOTOR DRIVER CIRCUITS SHORTED TOGETHER A/C - HEATER CONTROL MODULE REAR BLOWER MOTOR DRIVER CIRCUIT(S) OPEN REAR BLOWER MOTOR RESISTOR BLOCK TEST ACTION APPLICABILITY 1 Turn the Rear Blower switch on the A/C - Heater Control Module off. All Yes → Go To 2 No → Go To 4 2 Turn the Rear Blower switch on the A/C - Heater Control Module off. All Yes → Go To 3 No → Replace the Rear Blower Rear Control Switch in accordance with the Service Information. 583 HEATING & A/C |