FixVault

Indicator Light Circuit

Verify indicator light operation. See INDICATOR LIGHT TEST . Turn ignition switch to OFF position. Disconnect ECU connector. See Fig 1. Check for continuity between ground and ECU connector T8 terminal No. 12 (Blue/White wire). If continuity is not present, repair open in indicator light circuit harness or connectors. If continuity is present, check ECU. See PIN VOLTAGE TESTS . If found to be defective, replace ECU and retest system.

THEFT DETERRENT ECU CONNECTOR "A" IDENTIFICATION

Terminal No. Symbol Terminal ID
1 TO Luggage Compartment Door Opener Motor
2 ACT- Door Lock Motor
3 ACT+ Door Lock Motor
4 E Ground
5 - Not Used
6 PRLY Power Main Relay
7 IG Ignition Switch ON
8 ACC Ignition Switch OFF
9 +B2 Power Source
Fig 1: Identifying Theft Deterrent Electronic Control Unit (ECU) Connector Terminals
G93E82598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
THEFT DETERRENT ECU CONNECTOR "B" IDENTIFICATION

Terminal No. Symbol Terminal ID
1 +B1 Power Source
2 LSWR Door Unlock Detection Switch
3 CTY Door Open Detection Switch
4 DSWL Luggage Compartment Door Courtesy Switch
5 L2 Door Key Lock & Unlock Switch
6 UL3 Door Key Lock & Unlock Switch
7 DSWD Door Open Detection Switch
8 UL2 Door Key Lock & Unlock Switch
9 LUG Luggage Compartment Door Key Operated Switch
10 HEAD Headlight
11 SH Theft Deterrent Horn
12 IND Security Indicator Light
13 TSW Luggage Compartment Door Opener Switch
14 DSWH Engine Hood Courtesy Switch
15 LSWD Door Unlock Detection Switch
16 UL1 Door Lock Control Switch (Unlock)
17 - Not Used
18 - Not Used
19 DSWP Door Open Detection Switch
20 KSW Key Unlock Warning Switch
21 LSWP Door Unlock Detection Switch
22 L1 Door Lock Control Switch (Lock)
23 TAIL Taillight
24 HORN Horn
25 SRLY Ignition Switch ST Position