Test Mode Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

ENTER TEST MODE

HINT:

Operation of the tire pressure warning rest switch can be checked in TEST MODE.
During TEST MODE, the system is not initialized by pushing the tire pressure warning rest switch. The circuit of the tire pressure warning rest switch can be inspected while in this mode.

Make sure that the ignition switch is OFF.
Connect the intelligent tester (with CAN VIM) to the DLC3.
Turn the ignition switch ON.

Fig 1: Connecting Intelligent Tester (With CAN VIM) To DLC3
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Select the TEST MODE on the intelligent tester.

Perform tire pressure warning reset switch test.

Press the tire pressure warning reset switch.

Check the tire pressure warning indicator light.

TIRE PRESSURE WARNING RESET SWITCH CONDITIONS

Test Signal	Normal Condition
Tire Pressure warning Reset Switch	Switch ON: TPWS indicator comes on Switch OFF: TPWS indicator blinks

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.

Make sure that the ignition switch is OFF.

Fig 2: Selecting TEST MODE On Intelligent Tester
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Connect the intelligent tester (with CAN VIM) to the DLC3.
Turn the ignition switch ON.
Select the SIGNAL CHECK on intelligent tester.
Drive the vehicle at 12 mph (20 km/h) or more for 10 seconds or more.
Loosen the valve core and rapidly reduce the pressure (40 kPa (0.4 kgf/cm² , 5.8 psi) above / 30 sec.).

Fig 3: Connecting Intelligent Tester (With CAN VIM) To DLC3
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Selecting SIGNAL CHECK On Intelligent Tester
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

The transmitter ID can be transmitted by rapidly reducing the tire pressure.

Check that the tire pressure warning system test mode DTCs are erased.

TIRE PRESSURE WARNING SYSTEM TEST MODE DTC REFERENCE

SIGNAL CHECK DTC	Test Signal	Signal Check DTC Clear Condition
C2181 to C2185	Transmitter Data	Receive DATA from the transmitter which has a registered ID in TPWS ECU
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
C2195	Tire Pressure Antenna	When the ignition switch is ON, ECU detects the connection between the ECU and ANTL/R terminals is normal

Result

HINT:

After the signal check is completed, check for a DTC and signal check DTC to confirm the system status.

SIGNAL CHECK DTC REFERENCE

Condition	Procedure
SIGNAL CHECK DTC is output	Repair the faulty part and enter SIGNAL CHECK again
SIGNAL CHECK DTCs are cleared	Repair the faulty part and enter SIGNAL CHECK again

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 respective "DTC No." in the table.

DTC TROUBLE DETECTION REFERENCE

DTC No.	Detection Item	Trouble Area	Reference
C2181/81	Transmitter ID1 not received	Tire pressure antenna Each tire pressure monitor valve sub-assembly Tire pressure warning select switch Tire pressure monitor ECU Wire harness	DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2131/31, C2132/32, C2133/33, C2134/34, C2135/35, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85
C2182/82	Transmitter ID2 not received	Tire pressure antenna Each tire pressure monitor valve sub-assembly Tire pressure warning select switch Tire pressure monitor ECU Wire harness	DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2131/31, C2132/32, C2133/33, C2134/34, C2135/35, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85
C2183/83	Transmitter ID3 not received	Tire pressure antenna Each tire pressure monitor valve sub-assembly Tire pressure warning select switch Tire pressure monitor ECU Wire harness	DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2131/31, C2132/32, C2133/33, C2134/34, C2135/35, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85
C2184/84	Transmitter ID4 not received	Tire pressure antenna Each tire pressure monitor valve sub-assembly Tire pressure warning select switch Tire pressure monitor ECU Wire harness	DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2131/31, C2132/32, C2133/33, C2134/34, C2135/35, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85
C2185/85	Transmitter ID5 not received	Tire pressure antenna Each tire pressure monitor valve sub-assembly Tire pressure warning select switch Tire pressure monitor ECU Wire harness	DTC C2121/21, C2122/22, C2123/23, C2124/24, C2125/25, C2131/31, C2132/32, C2133/33, C2134/34, C2135/35, C2181/81, C2182/82, C2183/83, C2184/84, C2185/85
C2191/91:	Vehicle speed signal error	Vehicle speed sensor Combination meter assembly Tire pressure monitor ECU Wire harness	C2191/91: VEHICLE SPEED SIGNAL ERROR (TEST MODE DTC)
C2192/92	Tire pressure warning select switch malfunctions	Tire pressure warning reset switch Tire pressure monitor ECU Wire harness	C2192/92: SELECT SWITCH ERROR (TEST MODE DTC)
C2195/95	Tire pressure antenna malfunctions	Tire pressure antenna Tire pressure monitor ECU Wire harness	C2195/95: MULTI-RECEIVER ANTENNA CIRCUIT (TEST MODE DTC)