Test Mode Procedure

TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: 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.

(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, the tire pressure warning light turns on for 1 second. 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.





(h) Check the tire pressure warning reset switch.

(1) Check the tire pressure warning light when pressing the 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.





(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.