DTC 21

Inspection 1: Transmitter or Low Tire Pressure Warning Control Unit

MALFUNCTION CODE NO. 21, 22, 23 OR 24


1. CHECK CONNECTOR
Disconnect low tire pressure warning control unit connector. Inspect control unit terminals and harness connector pins for damage or loose connections. Then, reconnect connector.
Carry out self-diagnosis again.

OK or NG?

OK >> INSPECTION END
NG >> GO TO 2.

2. CHECK ANTENNA CONNECTOR
Check antenna and feeder connector for damage or loose connections.

OK or NG?

OK >> GO TO 3.
NG >> Repair or replace antenna or feeder connector.

3. HECK ANTENNA CIRCUIT
Check antenna circuit continuity.

Does continuity exist?

YES >> Check transmitter and transmitter activation tool.
NO >> Replace antenna circuit.