Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUSE (AM1, GAUGE, FR DOOR, ECU-IG, POWER)
1. Remove the AM1, GAUGE, FR DOOR, ECU-IG and POWER fuses from the instrument panel J/B assy.
2. Measure the resistance.
  Standard: Below 1 Ω
NG: REPLACE FUSE

OK: Go to next step.

INSPECT RELAY (IG1)

Remove the IG1 relay from the instrument panel J/B assy.

Measure the resistance.

Standard:

TERMINAL SPECIFIED CONDITION

Terminal No.	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 --> (when battery voltage is applied to terminals 1 and 2)

Fig 1: Inspecting Relay (IG1)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE RELAY

OK: Go to next step.

CHECK WIRE HARNESS (POWER WINDOW REGULATOR MASTER SWITCH ASSY - BODY GROUND)

Disconnect the P17 master switch connector.

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

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
P17-6 (B) - Body ground	Power switch ON (IG)	10 to 14 V
P17-7 (BW) - Body ground	Constant	10 to 14 V
P17-11 (BDR) - Body ground	Power switch ON (IG)	10 to 14 V
P17-1 (E) - Body ground	Constant	Below 1 Ω

Fig 2: Identifying P17 Power Window Regulator Master Switch Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 4

OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY

CHECK WIRE HARNESS (INSTRUMENT PANEL J/B ASSY - POWER WINDOW REGULATOR MASTER SWITCH ASSY)

Disconnect the 1G and 1H J/B connectors.
Disconnect the P17 master switch connector.

Measure the resistance of the wire harness side connectors.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
1G-6 - P17-11 (BDR)	Below 1 Ω
1H-10 - P17-7 (BW)	Below 1 Ω
1H-11 - P17-6 (B)	Below 1 Ω
1G-6 - Body ground	10 kΩ or higher
1H-10 - Body ground	10 kΩ or higher
1H-11 - Body ground	10 kΩ or higher

Fig 3: Identifying 1G And 1H J/B Connectors And P17 Master Switch Connector Terminals

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go to next step.

CHECK WIRE HARNESS (FOR POWER SOURCE OF INSTRUMENT PANEL J/B ASSY)

Disconnect the 1B, 1E and 1J J/B connectors.

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

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
1B-1 - Body ground	Constant	10 to 14 V
1E-17 - Body ground	Constant	Below 1 Ω
1J-3 - Body ground	Power switch ON (IG)	10 to 14 V
1J-1 - Body ground	Constant	10 to 14 V

Fig 4: Identifying 1B, 1E And 1J J/B Connectors

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE INSTRUMENT PANEL J/B ASSY