Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - HEATING / AIR CONDITIONING
AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) - HOW TO PROCEED WITH TROUBLESHOOTING
- HINT:
Use these procedures to troubleshoot the air conditioning system.
*: Use 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 COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
Use the intelligent tester to check if the CAN communication system is functioning normally .
for LHD: .
for RHD: .
Result | Proceed to |
CAN DTC is not output | A |
CAN DTC is output (for LHD) | B |
CAN DTC is output (for RHD) | C |
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4.CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
Use the intelligent tester to check if the LIN communication system is functioning normally ().
Result | Proceed to |
LIN DTC is not output | A |
LIN DTC is output | B |
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5.CHECK FOR DTC* |
Check for DTCs ().
Clear the DTCs ().
Based on the DTCs output above, try to force output of the air conditioning system DTC by simulating the conditions indicated by the DTC. Then recheck for DTCs.
Result | Proceed to |
DTC is not output | A |
DTC is output | B |
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6.PROBLEM SYMPTOMS TABLE |
Refer to the Problem Symptoms Table ().
Result | Proceed to |
Fault is not listed in problem symptoms table | A |
Fault is listed in problem symptoms table | B |
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7.OVERALL ANALYSIS AND TROUBLESHOOTING* |
Terminals of ECU ()
Data List/Active Test ()
On-vehicle Inspection
Inspection
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8.ADJUST, REPAIR OR REPLACE |
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9.CONFIRMATION TEST |
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