Lexus ES: Auto ID Under Registration (C2128)
DESCRIPTION
When ID registration is being performed via the automatic ID registration function, the tire pressure warning ECU and receiver stores C2128 and the tire pressure warning light flashes for 1 minute and then illuminates.
When the tire pressure warning ECU receives data from all registered tire pressure warning valve and transmitters and the system is judged to be normal, the tire pressure warning light turns off.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| C2128 | Auto ID Under Registration | ID registration is being performed via the automatic ID registration function | Electronically controlled brake system | - |
PROCEDURE
| 1. | CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Turn the engine switch on (IG).
(b) Check if the electronically controlled brake system DTCs are output.
Chassis > Brake/EPB > Trouble CodesHINT:
If DTC C2128 is stored, electronically controlled brake system DTCs may also be stored. If electronically controlled brake system DTCs are stored, perform troubleshooting for the electronically controlled brake system before performing ID registration via the automatic ID registration function.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| B | .gif) | GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM |
|
.gif)
| 2. | REGISTRATION OF TRANSMITTER ID (ID REGISTRATION VIA AUTOMATIC ID REGISTRATION FUNCTION) |
(a) Turn the engine switch off.
(b) Turn the engine switch on (IG).
(c) Perform ID registration for the tire pressure warning ECU and receiver (ID registration via the automatic ID registration function).
Click here .gif)
HINT:
Perform the following procedures within 1 trip and do not turn the engine switch off.
|
| 3. | READ VALUE USING TECHSTREAM ([RAM] AUTO ID REGISTERED WHEEL JUDGMENT STATUS) |
(a) Connect the Techstream to the DLC3.
(b) Turn the Techstream on.
(c) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(d) According to the display on the Techstream, display the ECU Data List.
Chassis > Tire Pressure Monitor > Data List| Tester Display |
|---|
| [RAM] Auto ID Registered FL Wheel Judgment Status |
| [RAM] Auto ID Registered FR Wheel Judgment Status |
| [RAM] Auto ID Registered RL Wheel Judgment Status |
| [RAM] Auto ID Registered RR Wheel Judgment Status |
(e) Refer to the following chart and check the "[RAM] Auto ID Registered Wheel Judgment Status" of each transmitter.
Chassis > Tire Pressure Monitor > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| [RAM] Auto ID Registered FL Wheel Judgment Status | FL wheel registration status during automatic ID registration (RAM) | Fixed, Under a Judgment of Side by Side Car Influence or Under a Judgment, Not Registered | Actual registration status | Cleared each time the engine switch is turned on (IG) from off. |
| [RAM] Auto ID Registered FR Wheel Judgment Status | FR wheel registration status during automatic ID registration (RAM) | Fixed, Under a Judgment of Side by Side Car Influence or Under a Judgment, Not Registered | Actual registration status | Cleared each time the engine switch is turned on (IG) from off. |
| [RAM] Auto ID Registered RL Wheel Judgment Status | RL wheel registration status during automatic ID registration (RAM) | Fixed, Under a Judgment of Side by Side Car Influence or Under a Judgment, Not Registered | Actual registration status | Cleared each time the engine switch is turned on (IG) from off. |
| [RAM] Auto ID Registered RR Wheel Judgment Status | RR wheel registration status during automatic ID registration (RAM) | Fixed, Under a Judgment of Side by Side Car Influence or Under a Judgment, Not Registered | Actual registration status | Cleared each time the engine switch is turned on (IG) from off. |
| Result | Proceed to |
|---|---|
| "Under a Judgment of Side by Side Car Influence or Under a Judgment" is displayed for 1 or more "[RAM] Auto ID Registered Wheel Judgment Status" Data List items. | A |
| "Under a Judgment of Side by Side Car Influence or Under a Judgment" is not displayed for any "[RAM] Auto ID Registered Wheel Judgment Status" Data List items. | B |
| B | | GO TO STEP 5 |
|
| 4. | REGISTRATION OF TRANSMITTER ID (ID REGISTRATION VIA TECHSTREAM) |
(a) Perform ID registration for the tire pressure warning ECU and receiver (ID registration via Techstream).
Click here
| NEXT | | END |
| 5. | REGISTRATION OF TRANSMITTER ID (ID REGISTRATION VIA TECHSTREAM) |
(a) Perform ID registration for the tire pressure warning ECU and receiver (ID registration via Techstream).
Click here
| NEXT | | END |
READ NEXT:
Transmitter ID1 Error (C2141-C2144)
DESCRIPTION The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressure of each wheel. The measured values are transmitted to the tir
Transmitter ID not Registered (Main) (C2171)
DESCRIPTION The IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU and receiver. When the ECU detects that a transmitter ID code is not registered
Receiver Error (C2176)
DESCRIPTION Tire pressure warning valve and transmitter signals are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. DTC No. Detection Item DTC Detection
SEE MORE:
Precaution
PRECAUTION PRECAUTIONS FOR INSPECTING POWER SOURCE FOR MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System (for
Installation
INSTALLATION PROCEDURE 1. INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY (a) Apply adhesive to 2 or 3 threads of the engine oil pressure switch assembly. Adhesive: Toyota Genuine Adhesive 1344, Three Bond 1344 or equivalent NOTICE:
Do not apply adhesive to the oil inlet port of the engine oil
