Test Mode Procedure

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: TEST MODE PROCEDURE

1. TEST MODE (SIGNAL CHECK MODE) PROCEDURE

HINT
* When entering test mode (signal check mode), the tire pressure warning ECU sets all the test mode (signal check mode) DTCs first.
After the tire pressure warning ECU completes the signal check for each inspection item, the DTCs for systems that are determined to be normal will be cleared.
The DTCs for other inspection items may not be cleared when only a certain signal is inspected.
* When test mode (signal check mode) returns to normal mode, all the test mode (signal check mode) DTCs will be cleared.
* Operation of the tire pressure warning reset switch can be checked in test mode (signal check mode).
* During test mode (signal check 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 power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power 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 (signal check mode) DTC clear conditions are satisfied, the tire pressure warning light turns on for 1 second. Following this, the tire pressure warning light blinks at 0.125 second intervals.





Text in Illustration





(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 each 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 C2184/84).

HINT
The transmitter ID is forcibly transmitted when the tire pressure is reduced rapidly.

(g) Check that the tire pressure warning system test mode (signal check mode) DTCs are cleared.





(h) Check the tire pressure warning reset switch.

(1) Press the tire pressure warning reset switch.

(2) Check the tire pressure warning light.





(i) Result

HINT
After the signal check is completed, check for test mode (signal check mode) DTCs to confirm the system status.





(j) End of test mode (signal check mode)

(1) After completing the test mode (signal check mode), turn the power switch off and disconnect the Techstream.

(k) Test mode (signal check mode) DTCs

(1) If a trouble code is displayed during the test mode (signal check mode) DTC check, check the diagnosis procedure listed for that code. For details of each code, refer to See page below.