Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: It is necessary to register an ID code after replacing the tire pressure monitor valve 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.
  
  Fig 1: Locating Tire Pressure Warning Light Circuit Connector Terminal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a service wire, connect E56-6 (IND) on the wire harness side and body ground.
3. Turn the ignition switch ON.
4. Check that the tire pressure warning light turns on.
  OK: Tire pressure warning light turns on.
  
  OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
  
  NG: GO TO NEXT STEP.

CHECK WIRE HARNESS (ECU - METER)

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

Measure the resistance of the wire harness side connectors.

Standard resistance

Fig 2: Checking Wire Harness (ECU - Meter) Connector Terminals

TERMINAL CHECK

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

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

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