T-SB-0047-09
January 19, 2009
IG1 Relay Freezing
| Service Category | Power Source/Network | ||
|---|---|---|---|
| Section | Market | USA |
Applicability
| YEAR(S) | MODEL(S) | ADDITIONAL INFORMATION |
|---|---|---|
| 2006 – 2009 | Corolla, Highlander, Matrix, Prius, RAV4, Sienna |
Introduction
Some customers may experience multiple warning lights illuminated, vehicle not shifting from Park to Drive, and other accessories becoming inoperative after the vehicle has cold soaked in sub freezing (below 14◦F[-10◦C]) ambient air temperatures. A newly designed relay has been made available to improve this condition. Use the following procedure to address this concern.
Parts Information
| PREVIOUS PART NUMBER | CURRENT PART NUMBER | PART NAME | QTY |
|---|---|---|---|
| 90987-02025 (Color: GRAY) | 90987-02031 (Color: RED) | IG1 Relay | 1 |
| 90987-02030 (Color: PINK) | 1 |
Warranty Information
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| 832251 | Relay Replacement | 0.2 | 90987-02025
90987-02030 | 72 | 02 |
APPLICABLE WARRANTY
|
Comprehensive Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
Required Tools & Equipment
| REQUIRED EQUIPMENT | SUPPLIER | PART NUMBER | QTY |
|---|---|---|---|
| TIS Techstream*
NOTE: Software version 4.00.017 or later is required. | ADE | TSPKG1 | 1 |
* Essential SST.
| NOTE
Additional TIS Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787. |
Repair Procedure
- Locate the instrument panel junction block No. 1 in the Instrument Panel (as shown in Figure 1).
- Remove the relay and verify the part number Figure 1.. located on the side of the relay.
A. If the part number is 90987-02025 or 90987-02030, replace the relay with the countermeasure relay P/N 90987-02031.
B. If the part number is 90987-02031, then diagnose the specific conditions reported by the customer following the Repair Manual.
 | |||
| 1 | IG1 Relay | ||
- Connect TIS Techstream and clear any stored DTCs.
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
![True MODS 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Marine Relays for Boats Auto Fan Cars](https://m.media-amazon.com/images/I/51gr46HT3vL.jpg "IG1 Relay Freezing - 2006-2009 Toyota Corolla, Highlander, Matrix, Prius, RAV4, Sienna 3")
- User Manual available for download under Product Information Details
- Waterproof construction & heavy duty 12AWG wires for the main contact.
- Bosch style 5-Pin SPDT (Single Pole Double Throw) Relay.
- 12VDC (14V Max) and 40A/30A High Switching Capability.
- Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Yellow - Output N/C (87a), and Blue - Output N/O (87).
Last update on 2026-06-17 / Affiliate links / Images from Amazon Product Advertising API
- Matches OE form, fit, and function
- Manufactured with high quality materials for internal coil and switch
- Includes anti-corrosion terminals
- Constructed to withstand a harsh underhood environment
- Application specific to ensure a correct fit for your vehicle
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
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