Lexus ES: How To Proceed With Troubleshooting
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
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| 2. | CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK |
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| 3. | INSPECT BATTERY VOLTAGE |
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
HINT:
If the battery voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
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| 4. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check if the CAN communication system is functioning normally.
Click here .gif)
| Result | Proceed to |
|---|---|
| CAN communication system DTCs are not output. | A |
| CAN communication system DTCs are output. | B |
| B | .gif) | GO TO CAN COMMUNICATION SYSTEM |
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| 5. | CHECK FOR DTC |
(a) Check for DTCs and note any codes that are output.
Body Electrical > Active Noise Control > Trouble Codes(b) Clear the DTCs.
Body Electrical > Active Noise Control > Clear DTCs(c) Recheck for DTCs. Try to reproduce the active noise control system DTCs by duplicating the conditions indicated by the DTCs.
Body Electrical > Active Noise Control > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output (Problem symptom occurs) | A |
| DTCs are output | B |
| DTCs are not output (Problem symptom does not occur) | C |
| B | | GO TO DIAGNOSTIC TROUBLE CODE CHART |
| C | | USE SIMULATION METHOD TO CHECK |
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| 6. | PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table. | A |
| Fault is listed in Problem Symptoms Table. | B |
| B | | PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM |
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| 7. | OVERALL ANALYSIS AND TROUBLESHOOTING |
(a) Terminals of ECU
Click here
(b) Data List / Active Test
Click here
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| 8. | ADJUST, REPAIR OR REPLACE |
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| 9. | CONFIRMATION TEST |
| NEXT | | END |
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Input / Output Signal Circuit
DESCRIPTION The stereo component equalizer assembly uses this circuit to send and receive signals to and from the stereo component amplifier assembly. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS
Crankshaft Position Sensor "A" No Signal (P033531)
DESCRIPTION This DTC is output when a malfunction has occurred in the engine pulse signal system from the ECM. DTC No. Detection Item DTC Detection Condition Trouble Area P033531 Cranks
Parts Location
PARTS LOCATION ILLUSTRATION *1 ECM *2 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-B NO. 2 FUSE - ECU-IG1 NO. 4 FUSE - ECU-ACC FUSE *3 DLC3 *4 STEREO COMPONENT EQUALIZER ASSEMBLY
SEE MORE:
Replacement
REPLACEMENT
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration)
that must be performed after parts are removed and installed, or replaced during
automatic transaxle fluid replacement are shown below.
Necessary Procedures After Parts Remov
Road Test
ROAD TEST PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transaxle does not shift up, shift down, or the shift point is too high or too low, conduct the following road test referring to the automatic sh
