Entering Display DTC Mode - MTC System
To enter the MTC system's Display DTC Mode, perform the following:
NOTE:
An active DTC 33 will prevent the control from entering diagnostic mode and performing certain diagnostic functions. It will also prevent proper A/C mode switch and status indicator function. If this occurs, refer to *A/C HEATER CONTROL WILL NOT ENTER DIAGNOSTIC MODE (MTC)
for the diagnostic test procedure.
- Turn the ignition to the On position.
- Turn the blower motor control (1) to the On position.
- Press the A/C mode switch (2) down, turn the blower motor control to the Off position, wait until both LEDs illuminate (approximately 5 seconds) and then release the A/C switch. If there are active or stored DTCs to display, the A/C status indicator (3) will begin to flash. If there are no active or stored DTCs to display, the LEDs on the A/C-heater control (4) will turn off and the system will automatically exit the mode of operation.
- To manually exit Display DTC Mode, either turn the ignition off or disconnect the negative battery cable from the battery.