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Pin Voltage Chart

PIN VOLTAGE CHART

PCM Connector/Terminal Circuit  Condition Voltage  Normal 
A/1 (1)Tank Pressure Sensor 2-3 Ignition On, Fuel Filler Cap Removed
A/2 HO2S No. 1 Varies From 0.2 To 0.8 Greater Than One Minute At 2000 RPM
A/3 Fuel Level Sensor 0.7 Ignition On, Fuel Tank Full
A/3 Fuel Level Sensor 5.5 Ignition On, Fuel Tank Empty
A/4 Engine Coolant Temperature (ECT) Sensor 0.5-0.9 Ignition On, Coolant Temperature 176°F (80°C)
A/5 Sensor Reference Voltage 4.75-5.25 Ignition On
A/6 Intake Air Temperature (IAT) Sensor 2.0-2.7 Ignition On, Sensor Ambient Temperature (Intake Air Temperature) 68°F (20°C)
A/7 Blank - -
A/8 Blank - -
A/9 Mass Airflow (MAF) Sensor 1.0-1.6 Ignition On
A/9 Mass Airflow (MAF) Sensor 1.7-2.0 Engine Running At Idle
A/10 (2)HO2S No. 2 0.2-0.8 Greater Than One Minute At 2000 RPM
A/11 Throttle Position (TP) Sensor 0.5-1.2 Ignition On, Idle Position
A/11 Throttle Position (TP) Sensor 3.4-4.7 Ignition On, Full Throttle
A/12 Blank - -
A/13 Manifold Differential Pressure (MDP) Sensor 3.96-5.25 Ignition On
A/13 Manifold Differential Pressure (MDP) Sensor 1.46-2.36 Engine At Idle
A/14 Closed Throttle Position (CTP) Switch 0-1 Ignition On, Throttle At Idle Position
A/14 Closed Throttle Position (CTP) Switch 3-5.25 Ignition On, Throttle Above Idle Position
A/15 Blank - -
A/16 Blank - -
B/1 Ground - -
B/2 Ground - -
B/3 Camshaft Position (CMP) Sensor Varies From 0-1 To 3-5.25 Ignition On, Crankshaft Turned Slowly
B/4 Blank - -
B/5 Blank - -
B/6 (1)EVAP Canister Air Valve 10-14 Ignition On
B/7 (1)Tank Pressure Control Solenoid 10-14 Ignition On, Fuel Level 75% Or Less
B/8 TCM Diagnosis Interface (4-Speed) Cycles From 0 To 5 Ignition On
B/9 HO2S No. 2 Heater 10-14 Ignition On
B/10 TCM (Throttle Valve Opening Signal) 0.94 Ignition On, Throttle Closed
B/10 TCM (Throttle Valve Opening Signal) 0.44 Ignition On, Throttle Open
B/11 Injector No. 1 10-14 Ignition On
B/12 Idle Air Control (IAC) Valve 10-14 Ignition On
B/13 Injector No. 3 10-14 Ignition On
B/14 Ground - -
B/15 Sensor Ground - -
B/16 Crankshaft Position (CKP) Sensor (-) 2.0-3.0 Ignition On
B/17 Crankshaft Position (CKP) Sensor (+) 2.0-3.0 Ignition On
B/18 Blank - -
B/19 Blank - -
B/20 Blank - -
B/21 Brake Light Switch (3-Speed) 0-1 Brake Switch Off
B/21 Brake Light Switch (3-Speed) 10-14 Brake Switch On
B/22 Data Link Connector (DLC) 10-14 Ignition On
B/23 HO2S No. 1 Heater 10-14 Ignition On
B/24 Injector No. 2 10-14 Ignition On
B/25 EVAP Canister Purge Valve 10-14 Ignition On
B/26 Injector No. 4 10-14 Ignition On
C/1 PCM Back-Up Power Source 10-14 Ignition On Or Off
C/2 Engine Start Signal 6-12 Engine Cranking
C/2 Engine Start Signal 0-1 Except Engine Cranking
C/3 Duty Output Terminal - -
C/4 Ignition Trigger Signal 0-1 Ignition On
C/4 Ignition Trigger Signal 0-1 To 4-5 Engine Cranking
C/5 Fuel Pump Relay 0-1 For 3 Seconds With Ignition On
C/5 Fuel Pump Relay 10-14 After 3 Seconds With Ignition On
C/6 Test Switch Terminal 10-14 Ignition On
C/6 Test Switch Terminal 0-1 Ignition On, Terminal Grounded
C/7 Vehicle Speed Sensor (VSS) Varies From0 to 4-5.25 Ignition On, Drive Wheel Turning
C/8 Blank - -
C/9 (1)A/C Signal 10-14 0-1 Ignition On A/C On
C/10 Main Relay 0-1 Ignition On
C/11 Instrument Cluster Ground 10-14 Nipponseiki
C/11 Instrument Cluster Ground 0-1 Nippondenso
C/12 Power Source 10-14 Ignition On
C/13 Power Source 10-14 Ignition On
C/14 Malfunction Indicator Light (MIL) 0-1 Ignition On
C/14 Malfunction Indicator Light (MIL) 10-14 Engine Running
C/15 EGR Solenoid Vacuum Valve 10-14 Ignition On
C/16 TCC Relay (3-Speed) 10-14 Ignition On
C/16 TCC Relay (3-Speed) 0-1 48 MPH In "D" Range
C/16 Coolant Temp. Signal For TCM (4-Speed) 0-1 Engine Running, Coolant Temperature Less Than 34°F (1°C)
C/16 - 2.5-3.9 Engine Running, Coolant Temperature Between 34-97°F (1-36°C)
C/16 - 5.1-6.3 Engine Running, Coolant Temperature Greater Than 97°F (36°C)
C/16 - 7.7-11.7 Ignition On, Engine Stalled
C/17 Diagnosis Switch Terminal 10-14 Ignition On
C/17 - 0-1 Ignition On, Terminal Grounded
C/18 EGR Solenoid Vacuum Valve (System Check) 10-14 Ignition On
C/19 (1)Power Steering Pressure (PSP) Switch 10-14 Engine Running, Wheel Turned To Stop
C/20 (1)ABS Control Module 10-14 Ignition On
C/21 Blank - -
C/22 Transmission Range Switch (TRS) 0-1 No. 1 at normal operating temperature. Ignition On, Gear Selector In "P" Or "N"
C/22 - Sensor output is less active than HO2S 10-14 Ignition On, Gear Selector In "R", "D", "2" Or "L"
(1)
If equipped.
(2)
Sensor output is less active than HO2S No. 1 at normal operating temperature.
Fig 1: Identifying PCM Connector Terminals (Tracker)
G96H09867Courtesy of SUZUKI OF AMERICA CORP.