Table 1: | HVAC Control Module Scan Tool Output Controls |
Table 2: | PCM Scan Tool Output Controls |
Scan Tool Output Control | Additional Menu Selection(s) | Description |
---|---|---|
A/C LED | Miscellaneous Test | The HVAC control module illuminates the A/C indicator LED when you select ON. The LED should remain illuminated until commanded OFF. |
A/C Request | Miscellaneous Test | The HVAC control module sends an A/C request signal to the PCM when you select ON. The PCM should energize the A/C compressor clutch relay. The A/C compressor clutch relay should remain energized until commanded OFF. |
Blower Motor | Miscellaneous Test | The HVAC control module commands the blower motor on to maximum speed when you select ON. The blower motor should operate at maximum speed until commanded OFF. |
Mix Motor | Miscellaneous Test | The HVAC control module commands the air temperature actuator towards 255 counts when you select ON. The HVAC control module commands the air temperature actuator towards 0 counts when commanded OFF. |
Select Solenoid 1 | Solenoid Test | The HVAC control module energizes the defroster solenoid when you select ON. The solenoid should remain energized until commanded OFF. Blower motor operation is disabled during this test. |
Select Solenoid 2 | Solenoid Test | The HVAC control module energizes the heater solenoid when you select ON. The solenoid should remain energized until commanded OFF. Blower motor operation is disabled during this test. |
Select Solenoid 3 | Solenoid Test | The HVAC control module energizes the solenoid when you select ON. The solenoid should remain energized until commanded OFF. Blower motor operation is disabled during this test. |
Select Solenoid 4 | Solenoid Test | The HVAC control module energizes the air inlet solenoid when you select ON. The solenoid should remain energized until commanded OFF. Blower motor operation is disabled during this test. |
Select Solenoid 5 | Solenoid Test | The HVAC control module energizes the A/C solenoid when you select ON. The solenoid should remain energized until commanded OFF. Blower motor operation is disabled during this test. |
Scan Tool Output Control | Additional Menu Selection(s) | Description |
---|---|---|
A/C Relay | Engine Output Controls | The PCM energizes the A/C compressor clutch relay when you select ON. The A/C compressor clutch should remain engaged until commanded OFF. |