Test Mode Procedure

TEST MODE PROCEDURE
1. ENTER TEST MODE

HINT:
^ Operation of the low tire pressure warning reset switch can be checked in TEST MODE.
^ During TEST MODE, the system is not initialized by pressing the tire pressure warning reset switch. The circuit of the tire pressure warning reset switch can be inspected during this mode.





(a) Make sure that the power switch is OFF.
(b) Connect the intelligent tester (with CAN VIM) to the DLC3.
(c) Turn the power switch ON (IG).
(d) Select TEST MODE on the intelligent tester.
(e) Perform the tire pressure warning reset switch test.
(1) Press the tire pressure warning reset switch.
(2) Check the tire pressure warning light.





2. PERFORM SIGNAL CHECK

HINT:
^ When entering the signal check mode, the tire pressure warning ECU sets all the signal check DTCs first.
After completing signal check for each inspection item, the DTCs 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 the tester returns to the normal mode from the signal check mode, all the signal check DTCs will be cleared.





(a) Make sure that the power switch is OFF.
(b) Connect the intelligent tester (with CAN VIM) to the DLC3.
(c) Turn the power switch ON (IG).
(d) Select "Signal Check" on the intelligent tester.





(e) Drive the vehicle at 12 mph (20 km/h) or more for 3 seconds or more.
(f) Remove the valve core and rapidly reduce the pressure (above 40 kPa (0.4 kgf/cm2, 5.8 psi)/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 cleared.

C2181/81 To C2184/84 / C2191/91-C2192/92:

(h) Result

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





(i) End of SIGNAL CHECK
After completing the test mode (SIGNAL CHECK), turn the power switch OFF and disconnect the tester.
(j) DTC of SIGNAL CHECK (TEST DIAGNOSIS)

HINT:
If a trouble code is displayed during the test mode DTC check, check the circuit indicated by the code. For details of each code, refer to the "DTC" below.

C2181/81-C2183/83:

C2184/84-C2192/92: