Test T: The Auxiliary Temperature, Panel/Floor And Blower Motor Controls Are Inoperative/Do Not Operate Correctly Using Front/R
PINPOINT TEST T: THE AUXILIARY TEMPERATURE, PANEL/FLOOR AND BLOWER MOTOR CONTROLS ARE INOPERATIVE/DO NOT OPERATE CORRECTLY USING THE FRONT/REAR AUXILIARY CLIMATE CONTROLSNormal Operation
Under normal operation, the panel/floor and cool/warm signal is received by the electronic automatic temperature control (EATC) module from the rear auxiliary control through circuit VHA15 (YE/GY). The blower speed signal is received by the EATC from the rear auxiliary control through circuit VHA17 (VT/GN). Reference voltage for the auxiliary controls signal resistor is provided by the EATC module through circuit LH111 (BN/WH). Ground for the auxiliary controls signal resistor is provided by the EATC module through circuit RH111 (GY/BN).
- DTC B2918 AUX Temp Blend Input Circuit Failure - The module senses an open/short in the auxiliary temperature control input to the EATC module circuit.
- DTC B2919 AUX Blower Motor Speed Input Circuit Failure - The module senses an open/short in the auxiliary blower control input to the EATC module circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Rear auxiliary control
- EATC module
T1-T2:
T3-T5:
T5-T7:
T7-T8:
T9:
