Inspection Procedure

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUSE (AM1, GAUGE, FL DOOR)
1. Remove the AM1, GAUGE, FL DOOR fuses from the instrument panel junction block.
2. Measure the resistance of the fuses.
  Standard resistance: Below 1 Ω
NG : REPLACE FUSE

OK: Go To Next Step

INSPECT IG1 RELAY (Marking: IG1)

Remove the IG1 relay from the instrument panel junction block.
Measure the resistance of the relay.
Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION REFERENCE

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω (when battery voltage is applied to terminals 1 and 2)

Fig 1: Removing Ig1 Relay From Instrument Panel Junction Block

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG : REPLACE IG1 RELAY

OK: Go To Next Step

CHECK WIRE HARNESS (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - BATTERY AND BODY GROUND)

Disconnect the P9 master switch connector.

Measure the voltage and resistance of the wire harness side connector.

Standard voltage

TESTER CONNECTION AND SPECIFIED CONDITION REFERENCE

Tester Connection	Condition	Specified Condition
P9-10 (B) - Body ground	Always	10 to 14 V
P9-20 (IG) - Body ground	Ignition switch OFF	Below 1 V
P9-20 (IG) - Body ground	Ignition switch ON	10 to 14 V

Fig 2: Disconnecting P9 Master Switch Connector

Standard resistance

TESTER CONNECTION AND SPECIFIED CONDITION REFERENCE

Tester Connection	Specified Condition
P9-2 (GND) - Body ground	Below 1 kΩ

NG : REPAIR OR REPLACE HARNESS AND CONNECTOR

OK : REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY