Pin Voltage Tests
WARNING: This page is about a different car, the 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 engine control module harness connector unless otherwise specified. See CONNECTOR IDENTIFICATION . See ENGINE CONTROL MODULE (ECM) PIN VOLTAGE CHART table.
ENGINE CONTROL MODULE (ECM) PIN VOLTAGE CHART
| Connector & Terminal No. (Symbol), Wire Color | Condition | Standard Voltage |
|---|---|---|
| E4-4 (STP) - E6-7 (E1), Green/White - Brown | Depress Brake Pedal | 10-16 Volts |
| E4-4 (STP) - E6-7 (E1), Green/White - Brown | Release Brake Pedal | Below 1 Volt |
| E4-31 (CCS) - E6-7 (E1), Blue/Red - Brown | Ignition Switch ON | 10-16 Volts |
| E4-31 (CCS) - E6-7 (E1), Blue/Red - Brown | Ignition Switch ON & CANCEL Switch Hold ON | 6.9-9.8 Volts |
| E4-31 (CCS) - E6-7 (E1), Blue/Red - Brown | Ignition Switch ON & SET/COAST Switch Hold ON | 4.7-6.9 Volts |
| E4-31 (CCS) - E6-7 (E1), Blue/Red - Brown | Ignition Switch ON & RES/ACC Switch Hold ON | 2.4-3.8 Volts |
| E4-31 (CCS) - E6-7 (E1), Blue/Red - Brown | Ignition Switch ON & MAIN Switch Hold ON | Below 1 Volt |
| E3-8 (ST1) - E6-7 (E1), Black/Blue - Brown | Depress Brake Pedal | Below 1 Volt |
| E3-8 (ST1) - E6-7 (E1), Black/Blue - Brown | Release Brake Pedal | 10-14 Volts |