Reading and Clearing Diagnostic Trouble Codes
SELF-DIAGNOSIS FUNCTIONA/C Auto Amp. Self-Diagnosis
A/C SYSTEM SELF-DIAGNOSIS FUNCTION
The self-diagnosis function is built into the A/C auto amp. to quickly locate the cause of malfunctions.
DESCRIPTION
The self-diagnostic system diagnosis sensors, CAN system, and battery voltage on A/C auto amp. Refer to applicable sections (items) for details. Fault codes (if any are present) will be displayed in the ambient temperature display area. Refer to "A/C System Self-Diagnosis Code Chart".
SELF-DIAGNOSTIC MODE
NOTE: Radio must be off.
1. On the A/C and AV switch assembly, press the "SETTING" button and twist the volume knob clockwise and counterclockwise until the Self-Diagnosis screen shows on the display.
2. Scroll down to "Confirmation/Adjustment" and press the "ENTER" button.
3. Scroll down to "Climate Control" and press the "ENTER" button.
4. The fan bars will flash on the display during the self-test, and then the fault codes will display in the ambient temperature area. They will continue scrolling until diagnostic mode is exited.
5. Exit by pressing the "BACK" button on A/C and AV switch assembly until display returns to its normal operation screen. HVAC system will be OFF.
The self-diagnostic system diagnosis sensors, CAN system, and battery voltage on A/C auto amp. Refer to applicable sections (items) for details. Fault codes (if any are present) will be displayed in the ambient temperature display area. Refer to "A/C System Self-Diagnosis Code Chart".
A/C and AV Switch Assembly Self-Diagnosis
A/C and AV switch assembly self-diagnosis function
The ON/OFF operation (continuity) of each switch in the A/C and AV switch assembly can be checked.
Self-diagnosis mode
- Press the "BACK" switch and the "UP" switch within 10 seconds after turning the ignition switch from OFF to ACC and hold them for 3 seconds or more. Then the buzzer sounds, all indicators of the preset switch illuminate, and the self-diagnosis mode starts.
- The continuity of each switch and control dials (A/C and AV switch assembly only) at the ON position can be checked by pressing each switch and turning each control dial. The buzzer sounds and LED's will illuminate if the switch is normal.
Finishing self-diagnosis mode
Self-diagnosis mode is canceled when turning the ignition switch OFF.
A/C System Self-Diagnosis Code Chart
SELF-DIAGNOSTIC CODE CHART
