- Switch ON: TPWS indicator comes on
| Last Modified: 4-30-2014 | 6.6 D | Doc ID: RM0000018LE001X |
| Model Year: 2006 | Model: LX470 | Prod Date Range: [05/2005 - ] |
| Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: TEST MODE PROCEDURE; 2006 MY LX470 [05/2005 - ] | ||
TEST MODE PROCEDURE
1. ENTER TEST MODE
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 while in this mode.
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(a) Make sure that the ignition switch is OFF. |
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(b) Connect the intelligent tester (with CAN VIM ) to the DLC3.
(c) Turn the ignition switch ON.
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(d) Select the TEST MODE on the intelligent tester. |
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(e) Perform tire pressure warning reset switch test.
(1) Press the tire pressure warning reset switch.
(2) Check the tire pressure warning indicator light.
OK
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Test Signal |
Normal Condition |
|---|---|
|
tire pressure warning reset switch |
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2. PERFORM SIGNAL CHECK
HINT:
- When entering the signal check, the tire pressure monitor ECU sets all the signal check DTCs first. After completing the signal check for each inspection item, the DTCs that are determined normal by the tire pressure monitor ECU will be erased. The DTCs for other inspection items may not be erased when only a certain signal is inspected.
- When the signal check returns back to normal mode, all the signal check DTCs will be erased.
(a) Make sure that the ignition switch is OFF.
(b) Connect the intelligent tester (with CAN VIM ) to the DLC3.
(c) Turn the ignition switch ON.
(d) Select the SIGNAL CHECK on intelligent tester.
(e) Drive the vehicle at 12 mph (20 km/h) or more for 10 seconds or more.
(f) Loosen the valve core and rapidly reduce the pressure (40 kPa (0.4 kgf/cm 2 ,5.8 psi ) above / 30 sec.).
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 erased.
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SIGNAL CHECK DTC |
Test Signal |
Signal Check DTC Clear Condition |
|---|---|---|
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C2181 to C2185 |
Transmitter Data |
Receive DATA from the transmitter which has a registered ID in TPWS ECU |
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C2191 |
Vehicle Speed Signal |
Vehicle speed of 12 mph (20 km/h) or more is detected for 3 seconds or more |
|
C2192 |
Tire Pressure Warning Select Switch |
Change the mode by pressing the Tire pressure warning select switch in the following order: MAIN→2nd→MAIN |
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C2195 |
Tire Pressure Antenna |
When the ignition switch is ON, ECU detects the connection between the ECU and ANTL/R terminals is normal |
(h) Result
HINT:
After the signal check is completed, check for a DTC and signal check DTC to confirm the system status.
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Condition |
Procedure |
|---|---|
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SIGNAL CHECK DTC is output |
Repair the faulty part and enter SIGNAL CHECK again |
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SIGNAL CHECK DTCs are cleared |
Repair the faulty part and enter SIGNAL CHECK again |
(i) End of SIGNAL CHECK
After completing test mode (SIGNAL CHECK), turn the ignition switch OFF and disconnect the tester.
DTC of SIGNAL CHECK (TEST DIAGNOSIS) function:
If a malfunction code is displayed during the test mode DTC check, check the circuit listed for that code. For details of each code, refer to the relevant page listed under the respective "DTC No." in the chart.
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DTC No. |
Detection Item |
Trouble Area |
see page |
|---|---|---|---|
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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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C2192/92 |
Tire pressure warning select switch malfunctions |
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C2195/95 |
Tire pressure antenna malfunctions |
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![2006 MY LX470 [05/2005 - ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2121/21,...,C2185/85; No Signal from Transmitter ID1 in Main Mode](../../../../stylegraphics/info.gif "2006 MY LX470 [05/2005 - ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2121/21,...,C2185/85; No Signal from Transmitter ID1 in Main Mode")
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