Pin Voltage Charts
NOTE:
All voltage tests should be performed using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in testing procedures. Voltage readings may vary slightly due to battery condition or charging rate.
NOTE:
See Figure for ECU Terminal ID.
ECU VOLTAGE SPECIFICATIONS
| ECU Terminals | Conditions | Volts |
|---|---|---|
| BATT & E1 | Always | 10.0-14.0 |
| IGSW & E1 | Ignition On | 10.0-14.0 |
| M-REL & E1 | Ignition On | 10.0-14.0 |
| +B & E1 | Ignition On | 10.0-14.0 |
| +B1 & E1 | Ignition On | 10.0-14.0 |
| IDL & E2 | Ignition On, Throttle Fully Open | 10.0-14.0 |
| IDL & E2 | Ign. On, Throttle Fully Closed | 1 Or Less |
| VC & E2 | Ign. On, Throttle Any Position | 4.0-6.0 |
| VTA & E2 | Ign. On, Throttle Fully Closed | 0.3-0.8 |
| VTA & E2 | Ignition On, Throttle Fully Open | 2.7-5.2 |
| VS & E2 | Ignition On | 3.5-4.5 |
| VS & E2 | Engine Idling | 2.0-4.0 |
| THA & E2 | Ignition On, Intake Air Temp. 68°F (20°C) | 1.0-3.0 |
| THW & E2 | Ignition On, Coolant Temp. 176°F (80°C) | 0.1-1.0 |
| No. 10 & EO1 | Engine Idling | Pulse Gen. |
| No. 20 & EO2 | Engine Idling | Pulse Gen. |
| No. 30 & EO1 | Engine Idling | Pulse Gen. |
| No. 40 & EO2 | Engine Idling | Pulse Gen. |
| No. 50 & EO1 | Engine Idling | Pulse Gen. |
| No. 60 & EO2 | Engine Idling | Pulse Gen. |
| No. 10 & EO1 | Ignition On | 10.0-14.0 |
| No. 20 & EO2 | Ignition On | 10.0-14.0 |
| No. 30 & EO1 | Ignition On | 10.0-14.0 |
| No. 40 & EO2 | Ignition On | 10.0-14.0 |
| No. 50 & EO1 | Ignition On | 10.0-14.0 |
| No. 60 & EO2 | Ignition On | 10.0-14.0 |
| IGT & E1 | Engine Idling | Pulse Gen. |
| IGF & E1 | Ignition On | 1 Or Less |
| IGF & E1 | Engine Idling | Pulse Gen. |
| G1 & G | Engine Idling | Pulse Gen. |
| G2 & G | Engine Idling | Pulse Gen. |
| NE & G | Engine Idling | Pulse Gen. |
| FPU & E1 | Ignition On | 10.0-14.0 |
| FPU & E1 | High Temperature Restart | 2 Or Less |
| ISC1 & E1 | Ignition On | 10.0-14.0 |
| ISC2 & E1 | Ignition On | 10.0-14.0 |
| ISC3 & E1 | Ignition On | 10.0-14.0 |
| ISC4 & E1 | Ignition On | 10.0-14.0 |
| VF1 & E1 | Maintain 2500 RPM 2 Minutes With Engine Warm, Then Idle | 1.0-4.0 |
| VF2 & E1 | Maintain 2500 RPM 2 Minutes With Engine Warm, Then Idle | 1.0-4.0 |
| O2 1 & E1 | Maintain 2500 RPM 2 Minutes With Engine Warm | 0-1 Pulse |
| O2 2 & E1 | Maintain 2500 RPM 2 Minutes With Engine Warm | 0-1 Pulse |
| HT & E1 | Ignition On | 10.0-14.0 |
| HT & E1 | Engine Idling | 2 Or Less |
| KNK 1 & E1 | Engine Idling | Pulse Gen. |
| KNK 2 & E1 | Engine Idling | Pulse Gen. |
| NSW & E1 | Ignition On, Gear Shift Not In "P" Or "N" | 10.0-14.0 |
| NSW & E1 | Ignition On Gear Shift In "P" Or "N" | 1 Or Less |
| SP1 & E1 | Rotate Driving Wheel Ignition On | Pulse Gen. |
| TE1 & E1 | Ignition On | 10.0-14.0 |
| TE2 & E1 | Ignition On | 10.0-14.0 |
| W & E1 | Ignition On | 2 Or Less |
| W & E1 | Engine Idling | 10.0-14.0 |
| OD1 & E1 | Ignition On | 4.0-6.0 |
| A/C & E1 | Engine Idling, A/C On | 2 Or Less |
| A/C & E1 | Engine Idling, A/C Off | 10.0-14.0 |
| ACT & E1 | Engine Idling, A/C On | 10.0-14.0 |
| ACT & E1 | Engine Idling, A/C Off | 2 Or Less |
| IACV & E01 | Ignition On | 10.0-14.0 |
| STA & E1 | Engine Cranking | 6 Or More |
| STJ & E01 | Engine Starting | 10.0-14.0 |