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Pin Voltage

ECM VOLTAGE SPECIFICATIONS

Measure Between ECM Terminals (1) Conditions Volts
A33 & B69 Always 9-14
A1 & B69 Ignition On 9-14
A31 & B69 Ignition On 9-14
A32 & B69 Ignition On 9-14
B41 & B65 Ignition On 4.5-5.5
B64 & B65 Ignition On, Throttle Fully Open 9-14
B64 & B65 Ignition On, Throttle Fully Closed 0-3
B63 & B65 Ignition On, Throttle Fully Open 9-14
B63 & B65 Ignition On, Throttle Fully Closed 0-3
B43 & B65 Ignition On, Throttle Fully Closed 0.3-0.8
B43 & B65 Ignition On, Throttle Valve Open 3.2-4.9
B42 & B65 Ignition On, Throttle Fully Closed 0.3-0.8
B42 & B65 Ignition On, Throttle Valve Open 3.2-4.9
B66 & B69 Engine Idling Pulse Gen.
B45 & B65 Engine Idling, Intake Air Temp. 68°F (20°C) 0.5-3.4
B44 & B65 Engine Idling, Coolant Temp. 176°F (80°C) 0.2-1
B77 & B69 Engine Cranking 6 Or More
B20 & B80 Ignition On 9-14
B18 & B80 Ignition On 9-14
B16 & B80 Ignition On 9-14
B19 & B80 Ignition On 9-14
B17 & B80 Ignition On 9-14
B15 & B80 Ignition On 9-14
B20 & B80 Engine Idling Pulse Gen.
B18 & B80 Engine Idling Pulse Gen.
B16 & B80 Engine Idling Pulse Gen.
B19 & B80 Engine Idling Pulse Gen.
B17 & B80 Engine Idling Pulse Gen.
B15 & B80 Engine Idling Pulse Gen.
B57 & B69 Engine Idling Pulse Gen.
B58 & B69 Engine Idling Pulse Gen.
B58 & B69 Ignition On 2 Or Less
B26 & B7 Engine Idling Pulse Gen.
B25 & B7 Engine Idling Pulse Gen.
B27 & B7 Engine Idling Pulse Gen.
A24 & B69 Ignition On 9-14
A22 & B69 Ignition On 2 Or Less
A22 & B69 Engine Idling Pulse Gen.
A21 & B69 Engine Idling 7 Or More
B39 & B80 Ignition On 9-14
B74 & B80 Ignition On 9-14
B75 & B80 Engine Idling 2 Or Less
B75 & B80 3500 RPM 9-14
B35 & B80 Engine Idling Pulse Gen.
B34 & B80 Engine Idling Pulse Gen.
B33 & B80 Engine Idling Pulse Gen.
B32 & B80 Engine Idling Pulse Gen.
B29 & B69 Maintain 2500 RPM 2 Minutes With Engine Warm, Then Idle 1.8-3.2
B28 & B69 Maintain 2500 RPM 2 Minutes With Engine Warm, Then Idle 1.8-3.2
B48 & B69 Maintain 2500 RPM 2 Minutes With Engine Warm Pulse Gen.
B47 & B69 Maintain 2500 RPM 2 Minutes With Engine Warm Pulse Gen.
A30 & B69 (2) Maintain 2500 RPM 2 Minutes With Engine Warm Pulse Gen.
B73 & B80 (2) Ignition On 9-14
B72 & B80 (2) Ignition On 9-14
A36 & B80 (2) Ignition On 9-14
B73 & B80 (2) Engine Idling. 3 Or Less
B72 & B80 (2) Engine Idling. 3 Or Less
A36 & B80 (2) Engine Idling. 3 Or Less
B50 & B69 Engine Idling Pulse Gen.
B49 & B69 Engine Idling Pulse Gen.
B76 & B69 Ignition On, Gearshift Not In "P" Or "N" 9-14
B76 & B69 Ignition On, Gearshift In "P" Or "N" 3 Or Less
A2 & B69 Ignition On, Rotate Driving Wheel Pulse Gen.
A20 & B69 Ignition On 9-14
A19 & B69 Ignition On 9-14
A6 & B69 Ignition On 3 Or Less
A6 & B69 Engine Idling 9-14
A12 & B69 Ignition On 9-14
A34 & B69 Engine Idling, A/C On 0-1.5
A34 & B69 Engine Idling, A/C Off 7.5-14
A23 & B69 Engine Idling, A/C On 0-3
A23 & B69 Engine Idling, A/C Off 9-14
A37 & B69 Ignition On 9-14
A40 & B65 Ignition On, Throttle Closed 0.3-0.8
A40 & B65 Ignition On, Throttle Open 3.2-4.9
A39 & B65 Ignition On, Throttle Closed 0.3-0.8
A39 & B65 Ignition On, Throttle Open 3.2-4.9
A38 & B69 Ignition On 4.5-5.5
B36 & B80 (2) Ignition On 9-14
B36 & B80 (2) High Temperature Restart 2 Or Less
A15 & B69 Brake Pedal Depressed, 7.5-14
A15 & B69 Defogger On 0-1.5
(1) See Figure
(2) GS300 Calif. models.
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