Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001CFX005X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the air conditioning system.
  • *: Using the intelligent tester.

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

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3.

CHECK FOR DTC

(a) Check for DTCs and note any codes that are output 2007 MY LX470 [08/2006 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: DTC CHECK / CLEAR .

(b) Delete the DTC.

(c) Recheck for DTCs. Based on the DTCs output above, try to force output of the A/C system DTC by simulating the operation indicated by the DTC.

Result

Proceed to

DTC is not output

A

DTC is output

B
B

Go to step 6
A

4.

PROBLEM SYMPTOMS TABLE

Refer to the problem symptoms table 2007 MY LX470 [08/2006 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: PROBLEM SYMPTOMS TABLE .

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B
B

Go to step 6
A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Actuator Check 2007 MY LX470 [08/2006 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: ACTUATOR CHECK .

(b) DATA LIST / ACTIVE TEST 2007 MY LX470 [08/2006 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: DATA LIST / ACTIVE TEST *.

(c) Terminals of ECU 2007 MY LX470 [08/2006 -        ]; AIR CONDITIONING: AIR CONDITIONING SYSTEM: TERMINALS OF ECU .

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6.

ADJUST, REPAIR OR REPLACE
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END