Pin Voltage Chart
NOTE:
Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.
ECM VOLTAGE SPECIFICATIONS
| Measure Between ECM Terminals (1) | Conditions | Volts | ||
|---|---|---|---|---|
| E12-14 & E11-16 | Always | 9-14 | ||
| E12-9 & E11-16 | Ignition On | 9-14 | ||
| E12-22 & E11-16 | Ignition On | 9-14 | ||
| E12-23 & E11-16 | Ignition On | 9-14 | ||
| E10-1 & E10-22 | Ignition On | 4.5-5.5 | ||
| E9-32 & E10-22 | Ignition On, Throttle Valve Open | 9-14 | ||
| E9-31 & E10-22 | Ign. On, Throttle Valve Closed | 0-3 | ||
| E10-12 & E10-22 | Ignition On, Throttle Valve Open | 3.2-4.9 | ||
| E10-8 & E11-16 | Engine Idling | Pulse Gen. | ||
| E10-18 & E10-22 | Engine Idling, Intake Air Temp. 68°F (20°C) | 0.5-3.4 | ||
| E10-20 & E10-22 | Engine Idling, Coolant Temp. 176°F (80°C) | 0.2-1.0 | ||
| E9-13 & E11-16 | Cranking | 6 Or More | ||
| E9-10 & E9-34 | Engine Idling | Pulse Gen. | ||
| E9-9 & E9-34 | Engine Idling | Pulse Gen. | ||
| E9-8 & E9-34 | Engine Idling | Pulse Gen. | ||
| E9-7 & E9-34 | Engine Idling | Pulse Gen. | ||
| E9-24 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-25 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-12 & E11-16 | Ignition On | 2 Or Less | ||
| E9-12 & E11-16 | Engine Idling | Pulse Gen. | ||
| E10-10 & E10-11 | Engine Idling | Pulse Gen. | ||
| E10-16 & E10-11 | Engine Idling | Pulse Gen. | ||
| E10-5 & E10-6 | Engine Idling | Pulse Gen. | ||
| E12-13 & E11-16 | Ignition On | 9-14 | ||
| E11-4 & E11-16 | Ignition On | 2 Or Less | ||
| E11-4 & E11-16 | Engine Idling | 5-6 Pulse | ||
| E11-1 & E11-16 | Engine Idling | 7 Or More | ||
| E9-15 & E11-16 | Ignition On | 9-14 | ||
| E9-15 & E11-16 | High Temperature Restart | 2 Or Less | ||
| E9-26 & E11-16 | Engine Idling | 9-14 | ||
| E9-23 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-22 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-21 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-20 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-17 & E11-16 | Maintain 2500 RPM 2 Minutes With Engine Warm | 1.8-3.2 | ||
| E9-18 & E11-16 | Maintain 2500 RPM 2 Minutes With Engine Warm | 1.8-3.2 | ||
| E10-13 & E11-16 | Maintain 2500 RPM 2 Minutes With Engine Warm | Pulse Gen. | ||
| E10-19 & E11-16 | Maintain 2500 RPM 2 Minutes With Engine Warm | Pulse Gen. | ||
| E10-15 & E9-34 | Engine Idling | 3 Or Less | ||
| E9-14 & E9-34 | Ignition On | 9-14 | ||
| E9-30 & E11-16 | Ignition On | 9-14 | ||
| E9-29 & E11-16 | Ignition On | 9-14 | ||
| E9-28 & E11-16 | Ignition On | 9-14 | ||
| E9-27 & E11-16 | Ignition On | 9-14 | ||
| E11-7 & E11-16 | Engine Idling | Pulse Gen. | ||
| E11-11 & E11-16 | Engine Idling | Pulse Gen. | ||
| E9-14 & E11-16 | Ignition On, Gearshift Not In "P" Or "N" | 9-14 | ||
| E9-14 & E11-16 | Ignition On, Gearshift In "P" Or "N" | 0-3 | ||
| E12-12 & E11-16 | Ignition On, Rotate Driving Wheel | Pulse Gen. | ||
| E11-5 & E11-16 | Ignition On | 9-14 | ||
| E12-11 & E11-16 | Ignition On | 9-14 | ||
| E11-3 & E11-16 | Ignition On | 3 Or Less | ||
| E11-3 & E11-16 | Engine Idling | 9-14 | ||
| E12-8 & E11-16 | Engine Idling | 9-14 | ||
| E12-7 & E11-16 | Ignition On | 9-14 | ||
| E12-20 & E11-16 | Engine Idling, A/C On | 7.5-14 | ||
| E12-20 & E11-16 | A/C Off | 2 Or Less | ||
| E12-5 & E11-16 | Engine Idling, A/C On | 3 Or Less | ||
| E12-5 & E11-16 | A/C Off | 9-14 | ||
| E12-27 & E11-16 | Ignition On | 9-14 | ||
| E12-26 & E10-22 | Ign. On, Throttle Valve Closed | 0.3-0.8 | ||
| E12-26 & E10-22 | Ign. On, Throttle Fully Open | 3.2-4.9 | ||
| E12-25 & E10-22 | Ign. On, Throttle Valve Closed | 0.3-0.8 | ||
| E12-25 & E10-22 | Ign. On, Throttle Fully Open | 3.2-4.9 | ||
| E12-24 & E11-16 | Ignition On | 4.5-5.5 | ||
| E12-10 & E11-16 | Air Pump Operating | 9-14 | ||
| E12-10 & E11-16 | Air Pump Not Operating | 0-3 | ||
| E11-8 & E11-16 | Air Pump Operating | 9-14 | ||
| E11-8 & E11-16 | Air Pump Not Operating | 0-3 | ||
| E9-6 & E11-16 | Ignition On | 9-14 | ||
| E9-6 & E11-16 | Air Pump Operating | 0-3 | ||
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