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PCM Inputs and Outputs at PCM Connector B (Δ) (49P)

Fig 1: Identifying PCM Connector B (49P) Terminals
G08078952Courtesy of AMERICAN HONDA MOTOR CO., INC.
Terminal number Wire color Terminal name Description Signal
1 BLK PG2 (POWER GROUND) Ground circuit for PCM Less than 0.2 V at all times
2 TAN VBSOL(POWER SOURCE FOR SOLENOID VALVES) Power source for solenoid valves With ignition switch ON (II): battery voltage
3 YEL IGP (POWER SOURCE) Power source for PCM With ignition switch ON (II): battery voltage
4 GRN INJ1 (No. 1 INJECTOR) Drives No. 1 injector At idle: duty controlled With ignition switch ON (II): battery voltage
5 PNK INJ5 (No. 5 INJECTOR) Drives No. 5 injector
6 TAN INJ4 (No. 4 INJECTOR) Drives No. 4 injector
7 BLU INJ3 (No. 3 INJECTOR) Drives No. 3 injector
8 RED INJ2 (No. 2 INJECTOR) Drives No. 2 injector
9 LT BLU INJ6 (No. 6 INJECTOR) Drives No. 6 injector
10 PUR LSB (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B) Drives A/T clutch pressure control solenoid valve B With ignition switch ON (II): current controlled
11 YEL IGPLS5 (No. 5 IGNITION COIL PULSE) Drives No. 5 ignition coil With ignition switch ON (II): about 0 V With engine running: pulses
12 TAN IGPLS6 (No. 6 IGNITION COIL PULSE) Drives No. 6 ignition coil
13 WHT VSB1 (VS CELL+BANK 1) Detects rear A/F sensor (Bank 1, sensor 1) VS CELL signal With warmed up engine running: about 3.4-4.8 V
14 GRN VSB2 (VS CELL+BANK 2) Detects front A/F sensor (Bank 2, sensor 1) VS CELL signal With warmed up engine running: about 3.4-4.8 V
15 RED VCENTB1 (VIRTUAL GROUND BANK1) Reference voltage for rear A/F sensor (Bank 1, sensor 1) With warmed up engine at idle: about 3.4-4.8 V
16 BLU SHO2SB2 (FRONT SECONDARY HEATED OXYGEN SENSOR (FRONT SECONDARY HO2S) (BANK 2, SENSOR 2)) Detects front secondary HO2S (Bank 2, sensor 2) signal With throttle fully opened from idle and warmed up engine: about 0.6 V With throttle quickly closed: below 0.4 V
17 RED TPSA (THROTTLE POSITION (TP) SENSOR A) Detects TP sensor A signal With throttle fully open: about 3.9 V With throttle fully closed: about 0.9 V
18 PNK VCC5 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II): about 5.0 V
19 LT GRN IMTM (INTAKE MANIFOLD TUNING (IMT) VALVE MONITOR) Detects IMT valve position With ignition switch ON (II): about 5.0 V With engine speed above 4, 300 rpm: about 0 V
20 LT BLU VCMSWC (ROCKER ARM OIL PRESSURE SWITCH C) Detects front rocker arm oil pressure switch signal With ignition switch ON (II) or at idle: battery voltage
21 PNK LSC (A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C) Drives A/T clutch pressure control solenoid valve C With ignition switch ON (II): current controlled
22 BLU IGPLS3 (No. 3 IGNITION COIL PULSE) Drives No. 3 ignition coil With ignition switch ON (II): about 0 V With engine running: pulses
23 LT BLU IGPLS4 (No. 4 IGNITION COIL PULSE) Drives No. 4 ignition coil
24 BRN VCENTB2 (VIRTUAL GROUND BANK 2) Reference voltage for front A/F sensor (Bank 2, sensor 1) With warmed up engine at idle: about 3.4-4.8 V
25 RED SHO2SB1 (REAR SECONDARY HEATED OXYGEN SENSOR (REAR SECONDARY HO2S) (BANK 1, SENSOR 2)) Detects rear secondary HO2S(Bank 1, sensor 2) signal With throttle fully opened from idle and warmed up engine: about 0.6 V With throttle quickly closed: below 0.4 V
26 PUR TPSB (THROTTLE POSITION (TP) SENSOR B) Detects TP sensor B signal With throttle fully open: about 4.1 V With throttle fully closed: about 1.7 V
28 GRN CSSC (CYLINDER STOP SOLENOID C) Drives rocker arm oil control solenoid A (Bank 2) With ignition switch ON (II) or at idle: about 0 V
29 WHT IGPLS1 (No. 1 IGNITION COIL PULSE) Drives No. 1 ignition coil With ignition switch ON (II): about 0 V With engine running: pulses
30 PUR IGPLS2 (No. 2 IGNITION COIL PULSE) Drives No. 2 ignition coil
31 GRN IPB1 (IP CELL + BANK 1) Detects rear A/F sensor (Bank 1, sensor 1) pump cell With engine running: about 2.0-5.6 V
32 PUR IPB2 (IP CELL+BANK 2) Detects front A/F sensor (Bank 2, sensor 1) pump cell With engine running: about 2.0-5.6 V
33 GRY SG5 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
34 BLU SG1 (SENSOR GROUND) Sensor ground Less than 0.2 V at all times
35 PUR MAP (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR) Detects MAP sensor signal With ignition switch ON (II): about 3.0 V At idle: about 1.0 V (depending on engine speed)
36 PNK VCC1 (SENSOR VOLTAGE) Provides sensor reference voltage With ignition switch ON (II): about 5.0 V
37 RED NM (INPUT SHAFT (MAINSHAFT) SPEED SENSOR) Detects input shaft (mainshaft) speed sensor signal With ignition switch ON (II): about 0 V or about 5.0 V With engine idling in N: pulses
38 TAN NC (OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR) Detects output shaft (countershaft) speed sensor signal With ignition switch ON (II): about 0 V or about 5.0 V While driving: pulses
39 LT GRN CSSA (CYLINDER STOP SOLENOID A) Drives rocker arm oil control solenoid B(Bank1) With ignition switch ON (II) or at idle: about 0 V
40 BLK PG1 (POWER GROUND) Ground circuit for PCM Less than 0.2 V at all times
41 BRN LG2 (LOGIC GROUND) Ground circuit for PCM Less than 0.2 V at all times
42 GRY IG1 (IGNITION SIGNAL) Detects ignition signal With ignition switch ON (II): battery voltage
45 BLU CKP (CRANKSHAFT POSITION (CKP) SENSOR) Detects CKP sensor signal With engine running: pulses
46 GRY CMP (CAMSHAFT POSITION (CMP) SENSOR) Detects CMP sensor signal With engine running: pulses
49 LT BLU CSSB (CYLINDER STOP SOLENOID B) Drives rocker arm oil control solenoid A (Bank 1) With ignition switch ON (II) or at idle: about 0 V