Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: It is necessary to register the transmitter IDs after replacing a tire pressure warning valve and transmitter and/or the tire pressure warning ECU (See REGISTRATION ).

INSPECT FUSE (GAUGE)
1. Remove the GAUGE fuse from the instrument panel junction block.
2. Measure the resistance of the fuse.
  Standard resistance: Below 1 Ω
NG: REPLACE FUSE

OK: Go to Next Step
CHECK TIRE PRESSURE WARNING LIGHT CIRCUIT
1. Disconnect the E56 ECU connector.
2. Using a service wire, connect E56-6 (IND) on the wire harness side and body ground.
  
  Fig 1: Identifying E56 ECU Connector Terminal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Turn the ignition switch ON.
4. Check that the tire pressure warning light turns on.
  OK: Tire pressure warning light turns on.
NG: Go to step 3

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )

CHECK HARNESS AND CONNECTOR (ECU - METER)

Disconnect the E56 ECU connector.
Disconnect the E19 meter connector.

Fig 2: Identifying E56 ECU And E19 Meter Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the wire harness side connectors.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
E56-6 (IND) - E19-5 (TIRE)	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )