Pin Voltage Tests
WARNING: This page is about a different car, the 2003 Lexus IS 300 and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
Using a DVOM connected to ground, backprobe to measure voltage or resistance at appropriate terminal at theft deterrent ECU harness connector unless otherwise specified. See CONNECTOR IDENTIFICATION . See THEFT DETERRENT ECU PIN VOLTAGE CHART table.
THEFT DETERRENT ECU PIN VOLTAGE CHART
| Terminal No. (Symbols), Wire Color | Condition | STD Voltage |
|---|---|---|
| T5-1 (HEAD) - T5-22 (E), Red/Yellow - White/Black | Light Control Switch Position Is HEAD | Below 1 Volt |
| T5-1 (HEAD) - T5-22 (E), Red/Yellow - White/Black | Light Control Switch Position Is OFF Or TAIL | 10-14 VVolts |
| T5-2 (TAIL) - T5-22 (E), Red/White - White/Black | Light Control Switch Position Is TAIL Or HEAD | Below 1 VVolt |
| T5-2 (TAIL) - T5-22 (E), Red/White - White/Black | Light Control Switch Position Is OFF | 10-14 VVolts |
| T5-4 (DSWH) - T5-22 (E), Blue - White/Black | Engine Hood Courtesy Switch Position Is ON (Engine Hood Opened) | Below 1 Volt |
| T5-4 (DSWH) - T5-22 (E), Blue - White/Black | Engine Hood Courtesy Switch Position OFF (Engine Hood Closed) | 7-8 Volt |
| T5-5 (LUG) - T5-22 (E), Black/White - White/Black | Luggage Compartment Door Key Lock & Unlock Switch Position Is ON | Below 1 Volt |
| T5-5 (LUG) - T5-22 (E), Black/White - White/Black | Luggage Compartment Door Key Lock & Unlock Switch Position Is OFF | 7-8 Volts |
| T5-9 (CLTB) - T5-22 (E), Red - White/Black | Ignition Switch Position Is LOCK | Below 1 Volt |
| T5-9 (CLTB) - T5-22 (E), Red - White/Black | Ignition Switch Position Is ACC Or ON | 10-14 Volt |
| T5-10 (IG) - T5-22 (E), Black/Red - White/Black | Ignition Switch Position Is LOCK Or ACC | Below 1 Volt |
| T5-10 (IG) - T5-22 (E), Black/Red - White/Black | Ignition Switch Position Is ON | 10-14 Volts |
| T5-11 (+B1) - T5-22 (E), White/Red - White/Black | Constant | 10-14 Volt |
| T5-12 (H) - T5-22 (E), Red/Yellow - White/Black | Light Control Switch Position Is HEAD | Below 1 Volt |
| T5-12 (H) - T5-22 (E), Red/Yellow - White/Black | Light Control Switch Position Is OFF Or TAIL | 10-14 Volts |
| T5-13 (T) - T5-22 (E), Red - White/Black | Light Control Switch Position Is TAIL or HEAD | Below 1 Volt |
| T5-13 (T) - T5-22 (E), Red - White/Black | Light Control Switch Position Is OFF | 10-14 Volts |
| T5-14 (A) - T5-22 (E), Green/Yellow - White/Black | Light Control Switch Position Is AUTO | Below 1 Volt |
| T5-14 (A) - T5-22 (E), Green/Yellow - White/Black | Light Control Switch Position Is OFF, TAIL Or HEAD | 7-9 Volts |
| T5-19 (KSW) - T5-22 (E), Black/Yellow - White/Black | Key Is Inserted | Below 1 Volt |
| T5-19 (KSW) - T5-22 (E), Black/Yellow - White/Black | Key Is Not Inserted | 10-14 Volts |
| T5-20 (CLTS) - T5-22 (E), Yellow - White/Black | Ignition Switch Position Is LOCK | Below 1 Volt |
| T5-20 (CLTS) - T5-22 (E), Yellow - White/Black | Ignition Switch Position Is ACC Or ON | 10-14 Volts |
| T5-21 (CLTE) - T5-22 (E), Brown - White/Black | Constant | Below 1 Volt |
| T5-22 (E) - Body Ground, White/Black | Constant | Below 1 Volt |
| T6-1 (+B2) - T5-22 (E), Red/Yellow - White/Black | Constant | 10-14 Volts |
| T6-2 (SH-) - T5-22 (E), Green/Yellow - White/Black | Always | Below 1 Ohm |
| T6-3 (SH) - T5-22 (E), Green - White/Black | Always | 10-14 Volts |
| T6-4 (HORN) - T5-22 (E), Green/White - White/Black | Horn Switch Position Is ON | Below 1 Volt |
| T6-4 (HORN) - T5-22 (E), Green/White - White/Black | Horn Switch Position Is OFF | 10-14 Volts |
| T6-12 (IND) - T5-22 (E), Blue/Black - White/Black | During Set Preparation | 3-5 Volts |