Toyota Venza: Test Mode Procedure

Toyota Venza Service Manual / Tire Pressure Monitoring / Tire Pressure Warning System / Test Mode Procedure

TEST MODE PROCEDURE

1. ENTER TEST MODE (SIGNAL CHECK MODE)

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(d) Check that the tire pressure warning light comes 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 accessory meter blinks at 0.125 second intervals.

2. PERFORM SIGNAL CHECK

HINT:

When entering signal check mode, the tire pressure warning ECU sets all the signal check DTCs (test 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 signal check returns to normal mode, all the signal check DTCs will be cleared.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Tire Pressure Monitor / Utility / Signal Check.

HINT:

Every time the conditions to clear signal check DTCs are met, the tire pressure warning light comes on for 1 second. Following this, the tire pressure warning light blinks at 0.125 second intervals.

(f) Start the engine and allow it to run at 1000 rpm for 3 seconds or more to check the engine speed signal (C2194/94).

(g) Drive the vehicle at 20 km/h (12 mph) or more for 3 seconds or more to check the vehicle speed signal (C2191/91).

(h) Loosen each valve core and rapidly reduce the pressure (at least 40 kPa (0.4 kg/cm2, 5.8 psi) within 30 seconds) to check the transmitter data (C2181/81 to C2184/84).

HINT:

The transmitter ID will be transmitted if the tire pressure is reduced rapidly.

(i) Check that the tire pressure warning system signal check DTCs are cleared.

Signal Check DTC	Test Signal	Signal Check DTC Clear Condition
C2181/81 to C2184/84	Transmitter Data	Data is received from the transmitter which has a registered ID in the tire pressure warning ECU
C2191/91	Vehicle Speed Signal	Vehicle speed of 20 km/h (12 mph) or more is detected for 3 seconds or more
C2194/94	Engine Speed Signal	Engine speed of 1000 rpm or more is detected for 3 seconds or more

(j) Result

HINT:

After the signal check is completed, check for signal check DTCs to confirm the system status.

Condition	Procedure
Signal check DTC is output	Repair the faulty part and enter SIGNAL CHECK again
Signal check DTCs are cleared	No problem

(k) Make a note of any signal check DTCs that are output.

(l) End of signal check mode

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

(m) Signal check (test mode) DTCs

(1) If a trouble code was displayed during the signal check mode DTC check, check the circuit listed for that code. For details of each code, refer to See Procedure below.

DTC No.	Detection Item	Trouble Area
C2181/81	Transmitter ID1 not received	Tire pressure warning valve and transmitter Tire pressure warning antenna and receiver Wire harness or connector Tire pressure warning ECU
C2182/82	Transmitter ID2 not received	Tire pressure warning valve and transmitter Tire pressure warning antenna and receiver Wire harness or connector Tire pressure warning ECU
C2183/83	Transmitter ID3 not received	Tire pressure warning valve and transmitter Tire pressure warning antenna and receiver Wire harness or connector Tire pressure warning ECU
C2184/84	Transmitter ID4 not received	Tire pressure warning valve and transmitter Tire pressure warning antenna and receiver Wire harness or connector Tire pressure warning ECU
C2191/91	Vehicle speed signal error	Vehicle speed sensor Combination meter assembly Wire harness or connector Tire pressure warning ECU
C2194/94	Engine speed signal error	ECM Harness or connector Tire pressure warning ECU

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