Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. 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 sub-assembly and/or the tire pressure monitor ECU (see REGISTRATION ).

HINT:

This procedure must be performed according to the PROBLEM SYMPTOMS TABLE .

INSPECT FUSE
1. Remove the MET fuse from the cowl side junction block RH.
2. Measure the resistance of the fuse.
  Standard resistance:
  
  Below 1 Ω
NG: REPLACE FUSE

OK: GO TO NEXT STEP

CHECK WIRE HARNESS AND CONNECTOR (BATTERY - COMBINATION METER)

Disconnect the C12 combination meter connector.
Turn the ignition switch ON.

Measure the voltage of the wire harness side connectors.

Standard voltage

VOLTAGE SPECIFIED CONDITIONS

Tester connection	Condition	Specified Condition
C12-10 - Body ground	Ignition switch ON	10 to 14 V

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 1: Identifying C12 Combination Meter Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP

CHECK WIRE HARNESS AND CONNECTOR (COMBINATION METER - ECU AND BODY GROUND)

Disconnect the T25 ECU connector.
Disconnect the C13 and C15 meter connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Specified Condition
T25-5 (IND) - C13-13	Below 1 Ω
T25-5 (IND) - Body ground	10 kΩ or higher
C15-1 - Body ground	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 2: Identifying Combination Meter & Monitor ECU Connector Terminals

OK: GO TO NEXT STEP

OPERATION OF ECU WITH NEW OR NORMAL FUNCTIONING ECU
1. Temporarily replace the ECU with a new or normally functioning one.
2. Check that the malfunction disappears.
  OK:
  
  Malfunction disappears
NG: REPLACE COMBINATION METER ASSEMBLY

OK: REPLACE TIRE PRESSURE MONITOR ECU