Last Modified: 4-30-2014 6.6 D Doc ID: RM0000018NT001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM: DTC CHECK / CLEAR; 2006 MY LX470 [05/2005 -        ]

DTC CHECK / CLEAR

1. WARNING FOR AIR CONDITIONING COMPRESSOR LOCK

If compressor lock occurs during A/C operation, the A/C switch indicator on the A/C control assembly starts blinking.

When this occurs, check for compressor lock (DTC 22) using diagnostic trouble code check, and then proceed to inspect the circuit or the component.

Compressor circuit 2006 MY LX470 [05/2005 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: Compressor Circuit .

2. INDICATOR CHECK

(a) Turn the ignition switch ON while pressing the A/C control AUTO switch and R/F switch simultaneously.

(b) Check that all the indicators light up and go off 4 times in succession at 1 second intervals.

HINT:

  • After the indicator check ends, the diagnostic trouble code check begins automatically.
  • Press the OFF switch (when desiring) to cancel the check mode.

3. DTC CHECK (SENSOR CHECK)

(a) Perform an indicator check. After the indicator check is completed, the system enters the DTC check mode automatically.

(b) Read the DTC displayed on the panel. Refer to the list of DTCs on page ( 2006 MY LX470 [05/2005 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: DIAGNOSTIC TROUBLE CODE CHART ) when reading the DTCs.

If the slower display is desired, press the DEF switch and change it to step operation. Every time the DEF switch is pressed, the display changes by 1 step.

4. CLEARING DTC

(a) Pull out the ACC fuse in the cowl side junction block LH for 10 seconds or longer to clear the DTC's memory.

(b) After reinserting the fuse, check that the normal code is output.