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 | N/A | 10.0-14.0 |
| IGSW & E1 | Ignition On | 10.0-14.0 |
| +B & E1 | Ignition On | 10.0-14.0 |
| +B1 & E1 | Ignition On | 10.0-14.0 |
| IDL1 & E2 | Ignition On, Throttle Fully Open | 10.0-14.0 |
| IDL1 & E2 | Ign. On, Throttle Fully Closed | 1 Or Less |
| IDL2 & E2 | Ignition On, Throttle Fully Open | 10.0-14.0 |
| IDL2 & E2 | Ign. On, Throttle Fully Closed | 1 Or Less |
| VC & E2 | Ign. On, Throttle Any Position | 4.0-6.0 |
| VTA1 & E2 | Ign. On, Throttle Fully Closed | 0.1-1.0 |
| VTA1 & E2 | Ignition On, Throttle Valve Open | 3.0-6.0 |
| VTA2 & E2 | Ign. On, Throttle Fully Closed | 0.1-1.0 |
| VTA2 & E2 | Ignition On, Throttle Valve Open | 3.0-6.0 |
| KS & E1 | Engine Idling | Pulse Gen. |
| THA & E2 | Engine Idling, Intake Air Temp. 68°F (20°C) | 1.0-3.0 |
| THW & E2 | Engine Idling, Coolant Temp. 176°F (80°C) | 0.1-1.0 |
| STA & E1 | Engine Cranking | 6 Or More |
| No. 10 & EO1 | Ignition On | 10.0-14.0 |
| No. 20 & EO1 | Ignition On | 10.0-14.0 |
| No. 30 & EO1 | Ignition On | 10.0-14.0 |
| No. 40 & EO1 | Ignition On | 10.0-14.0 |
| No. 10 & EO2 | Engine Idling | Pulse Gen. |
| No. 20 & EO2 | Engine Idling | Pulse Gen. |
| No. 30 & EO2 | Engine Idling | Pulse Gen. |
| No. 40 & EO2 | Engine Idling | Pulse Gen. |
| IGT1 & E1 | Engine Idling | Pulse Gen. |
| IGT2 & E1 | Engine Idling | Pulse Gen. |
| IGF1 & E1 | Ignition On | 1 Or Less |
| IGF2 & E1 | Engine Idling | Pulse Gen. |
| G1 & G1(-) | Engine Idling | Pulse Gen. |
| G2 & G2(-) | Engine Idling | Pulse Gen. |
| NE & NE(-) | Engine Idling | Pulse Gen. |
| M-REL & E1 | Ignition On | 10.0-14.0 |
| FRC & E1 | Sudden Increase (6000 RPM) | 4.2-6.0 |
| FRC & E1 | Idle | Pulse Gen. |
| DI & E1 | Idle | 7 Or More |
| FPU & E1 | Ignition On | 10.0-14.0 |
| FPU & E1 | High Temperature Restart | 2 Or Less |
| PAG & E1 | Ignition On | 10.0-14.0 |
| 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 R1 & E1 | Maintain 2500 RPM 2 Minutes With Engine Warm | 0-1 Pulse |
| O2 L1 & E1 | Maintain 2500 RPM 2 Minutes With Engine Warm | 0-1 Pulse |
| HTR1 & E1 | Ignition On | 10.0-14.0 |
| HTR2 & E1 | Ignition On | 10.0-14.0 |
| HTL1 & E2 | Engine Idling | 2 Or Less |
| HTL2 & E2 | Engine Idling | 2 Or Less |
| EGR1 & E1 | Ignition On | 10.0-14.0 |
| EGR2 & E1 | Ignition On | 10.0-14.0 |
| EGR3 & E1 | Ignition On | 10.0-14.0 |
| EGR4 & E1 | Ignition On | 10.0-14.0 |
| EGR & E1 | Ignition On | 10.0-14.0 |
| KNK1 & E1 | Engine Idling | Pulse Gen. |
| KNK2 & 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 |
| SPD & E1 | Rotate Driving Wheel Ignition On | 4 Or More |
| 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 |
| AD & E1 | Engine Idling | 10.0-14.0 |
| OD1 & E1 | Ignition On | 4.0-6.0 |
| AC & E1 | Engine Idling, A/C On | 2 Or Less |
| AC & E1 | Engine Idling, A/C Off | 10.0-14.0 |
| ACHG & E1 | Engine Idling, A/C On | 2 Or Less |
| ACHG & E1 | Engine Idling, A/C Off | 10.0-14.0 |
| TR & E1 | Ignition On | 10.0-14.0 |
| VT01 & E2 | Ignition On, Throttle Closed | 1 Or Less |
| VT02 & E2 | Ignition On, Throttle Open | 3.0-5.5 |
| NEO & E1 | Ignition On | 4.0-6.0 |