Lexus ES: Test Mode Procedure
TEST MODE PROCEDURE
TEST MODE PROCEDURE
NOTICE:
After replacing the absorber control ECU, it is necessary to perform registration of vehicle identification information. Vehicle identification information is automatically acquired when the system enters test mode.
HINT:
- When entering test mode, the absorber control ECU stores all the test mode DTCs first. After completing the check for each test mode item, the test mode DTCs whose deletion conditions are met are cleared. The test mode DTCs for some items may not be cleared when only a certain signal is inspected.
- When the system returns to normal mode, all the test mode DTCs will be cleared.
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / Air suspension / Utility / Signal Check.
Chassis > Air suspension > Utility| Tester Display |
|---|
| Signal Check |
(f) Confirm that the system is in test mode by checking that the "Sport S+" indicator in the combination meter assembly is blinking at 0.125-second intervals (0.125 seconds on and 0.125 seconds off).
HINT:
When vehicle identification information has not been acquired, the "Sport S+" indicator in the combination meter assembly blinks at 1-second intervals (1 second on and 1 second off). After vehicle identification information is acquired, the "Sport S+" indicator in the combination meter assembly blinks at 0.125-second intervals (0.125 seconds on and 0.125 seconds off).
(g) With the vehicle stationary on a level surface, wait for 1 second or more.
(h) Read the test mode DTCs by following the prompts on the Techstream screen.
(i) End test mode by following the prompts on the Techstream screen.
(j) Turn the engine switch off and disconnect the Techstream from the DLC3.
TEST MODE DTC CHART
(a) If a trouble code is output during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to Link for the respective DTC in the chart.
| DTC Code | Detection Item | Trouble Area | Deletion Condition | Link |
|---|---|---|---|---|
| C1796 | (Up&Down)G Sensor FR |
| With the vehicle stationary on a level surface, an acceleration sensor value that is within -1.96 to 1.96 m/s2 is received from the acceleration sensor for 1 second or more. | |
| C1797 | (Up&Down)G Sensor FL |
| ||
| C1798 | (Up&Down)G Sensor Rear | Absorber control ECU |
.gif)
READ NEXT:
Terminals Of Ecu
TERMINALS OF ECU CHECK ABSORBER CONTROL ECU (a) Measure the voltage and resistance according to the value(s) in the table below. NOTICE: Inspect the connectors from the back side while the connectors
Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC (a) Turn the engine switch off. (b) Connect the Techstream to the DLC3. (c) Turn the engine switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: C
Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA (a) The absorber control ECU stores system condition information as freeze frame data the moment a DTC is stored. The Freeze Frame Data can be displayed using the T
SEE MORE:
Steering Angle Initialization Incomplete (C1694)
DESCRIPTION
This DTC is stored when the parking assist ECU judges that the maximum steering angle has not been memorized (steering angle setting is incomplete).
This DTC is stored when the rear television camera assembly judges that the maximum steering angle has not been memorized (steering an
Image from Camera for Parking Assist Monitor is Abnormal
DESCRIPTION The video signal from the rear television camera assembly is transmitted to the multi-display assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
If the cable was disconnected from and reconnected to the negative (-) battery terminal, the estimated course lines may not be displa
