Lexus ES: Diagnosis System
Lexus ES (XZ10) Service Manual / Power Source & Network / A25a-fxs (battery / Charging) / Charging System / Diagnosis System
DIAGNOSIS SYSTEM
DLC3 (Data Link Connector 3)
(a) Check the DLC3.
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AUXILIARY BATTERY VOLTAGE
Standard Voltage:
| Switch Condition | Specified Condition |
|---|---|
| Power switch on (IG) | 11 to 14 V |
-
If voltage is below 11 V, recharge or replace the auxiliary battery.
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
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Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTCS (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Hybrid Control / Tro
Terminals Of Ecu
TERMINALS OF ECU *a Hybrid Vehicle Control ECU - - HINT: The standard normal voltage between each pair of hybrid vehicle control ECU terminals is shown in the table below. The appropriate
How To Proceed With Troubleshooting
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CONFIRM PROBLEM SYMPTOMS
NEXT 3. CUSTOMER PROBLEM ANALYSIS (a) Check if the vehicle has be
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Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
This procedure includes the installation of small-head bolts. Refer to Small-Head
Bolts of Basic Repair Hint to identify the small-head bolts.
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PROCEDURE
1. INSTALL SPARK PLUG
HINT:
Perform "Inspection After Repair" after r
Check Bus 2 Line for Short to +B
DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and termi
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