| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM0000017WP006X |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 - ] | ||
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
- Use these procedures to troubleshoot the multiplex communication system.
- *: Use the intelligent tester.
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1. |
VEHICLE BROUGHT TO WORKSHOP |
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2. |
INSPECT BATTERY VOLTAGE |
Standard voltage:
10 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.
(b) Delete the DTC.
(c) Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.
Result:
|
Result |
Proceed to |
|---|---|
|
DTC does not reoccur |
A |
|
DTC reoccurs |
B |
| B |
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Go to step 5 |
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4. |
OVERALL ANALYSIS AND TROUBLESHOOTING |
(a)
Terminals of ECU
![2007 MY LX470 [08/2006 - ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: TERMINALS OF ECU](../../../../stylegraphics/info.gif "2007 MY LX470 [08/2006 - ]; MULTIPLEX COMMUNICATION: MULTIPLEX COMMUNICATION SYSTEM: TERMINALS OF ECU")
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5. |
ADJUST, REPAIR OR REPLACE |
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6. |
CONFIRMATION TEST |
| NEXT |
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END |
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