CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1. | VEHICLE BROUGHT TO WORKSHOP |
|
2. | CUSTOMER PROBLEM ANALYSIS |
(a) Interview the customer and confirm the problem.
Click here
|
3. | CHECK DTC AND FREEZE FRAME DATA* |
(a) Check and record DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
(b) Clear the DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
(c) Reconfirm the DTCs.
(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
HINT:
Click here
Click here
Click here
C137BA2: Click here
C137BA3: Click here
Result | Proceed to |
---|---|
DTCs are output. | A |
DTCs are not output. (Problem symptom does not occur.) | B |
DTCs are not output. (Problem symptom occurs.) | C |
B | ![]() | GO TO STEP 5 |
C | ![]() | GO TO STEP 6 |
|
4. | DIAGNOSTIC TROUBLE CODE CHART |
(a) Proceed to Diagnostic Trouble Code Chart.
Click here
NEXT | ![]() | GO TO STEP 7 |
5. | SYMPTOM SIMULATION |
(a) Proceed to How to Proceed with Troubleshooting.
Click here
NEXT | ![]() | GO TO STEP 6 |
6. | PROBLEM SYMPTOMS TABLE |
(a) Proceed to Problem Symptoms Table.
Click here
|
7. | CIRCUIT INSPECTION* |
|
8. | IDENTIFICATION OF PROBLEM |
|
9. | REPAIR OR REPLACEMENT |
|
10. | RECONFIRM DTC* |
(a) Clear the DTCs.
Click here
(b) Check if the same DTCs are output.
Click here
Result | Proceed to |
---|---|
DTCs are not output. | A |
DTCs are output. | B |
B | ![]() | REPAIR CIRCUITS INDICATED BY OUTPUT DTCS |
|
11. | CONFIRMATION TEST* |
NEXT | ![]() | END |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Pre-collision System: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012587,U012687,U012987)
DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication with ECM/PCM "A" Missing Message While the vehicle is being driven at 5 km/h (4 mph) or more, a ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Park Assist / Monitoring: Television Camera (for Front)
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