- Switch on: Tire pressure warning light turns on.
- Switch off: Tire pressure warning light blinks at 0.125 second intervals.
| Last Modified: 11-27-2007 | 1.6 D | |
| Service Category: Suspension | Section: Tire Pressure Monitoring | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000000XN002YX |
| Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: TEST MODE PROCEDURE (2008 LX570) | ||
TEST MODE PROCEDURE
1. TEST MODE PROCEDURE
HINT:
- Operation of the tire pressure warning reset switch can be checked in Test Mode.
- During Test Mode, the system is not initialized by pushing the tire pressure warning reset switch. The circuit of the tire pressure warning reset switch can be inspected during this mode.
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Check that the tire pressure warning light turns on for 3 seconds and then goes off.
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / Signal Check.
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(g) Confirm that the tire pressure warning light in the combination meter blinks at 0.125 second intervals. |
2. PERFORM SIGNAL CHECK
HINT:
-
When entering Signal Check mode, the tire pressure warning ECU stores all the Test Mode DTCs first.
After completing the Signal Check for each inspection item, the DTCs for systems that are determined to be normal by the tire pressure warning ECU will be cleared.
The DTCs for other inspection items may not be cleared when only a certain signal is inspected.
- When Signal Check 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) and the Techstream on.
(d) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / Signal Check.
HINT:
Every time the Test Mode DTC clear conditions are satisfied. Then, the tire pressure warning light blinks at 0.125 second intervals.
(e) Drive the vehicle at 20 km/h (12 mph) or more for 3 seconds or more to check the vehicle speed signal (C2191/91).
(f) Loosen the valve core and rapidly reduce the pressure (at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds) to check the transmitter data (C2181/81 to C2185/85).
HINT:
The transmitter ID can be transmitted by rapidly reducing the tire pressure.
(g) Check that the tire pressure warning system Test Mode DTCs are cleared.
|
Test Mode DTC |
Test Signal |
Test Mode DTC Clear Condition |
|---|---|---|
|
C2181/81 to C2185/85 |
Transmitter Data |
Receive data from the transmitter which has a registered ID in the tire pressure warning ECU |
|
C2191/91 |
Vehicle Speed Signal |
Vehicle speed of 20 km/h (12 mph) or more is output for 3 seconds or more |
(h) Check the tire pressure warning reset switch.
(1) Check the tire pressure warning light when pressing the tire pressure warning reset switch.
|
Test Signal |
Normal Condition |
|---|---|
|
Tire Pressure Warning Reset Switch |
|
(i) Result
HINT:
After the Signal Check is completed, check for a Test Mode DTC to confirm the system status.
|
Condition |
Procedure |
|---|---|
|
Test Mode DTC is output |
Repair the faulty part and enter Signal Check again |
|
Test Mode DTCs are cleared |
No problem |
(j) End of Signal Check
(1) After completing the Test Mode (Signal Check), turn the engine switch off and disconnect the Techstream.
(k) DTC of Test Mode (Test Diagnosis)
(1) 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 the "See page" below.
|
DTC Code |
Detection Item |
Trouble Area |
See page |
|---|---|---|---|
|
C2181/81 |
Transmitter ID1 not received |
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C2182/82 |
Transmitter ID2 not received |
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C2183/83 |
Transmitter ID3 not received |
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C2184/84 |
Transmitter ID4 not received |
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C2185/85 |
Transmitter ID5 not received |
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C2191/91 |
Vehicle speed signal error |
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