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Home >> Honda >> 2021 >> Odyssey EX >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System / Engine Mechanical - Service, Testing And Troubleshooting >> Connector View >> PCM Connector for Inputs and Outputs
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PCM Connector for Inputs and Outputs

Connector Index
PCM Connector A (50P)
PCM Connector E (80P)

PCM Connector A (50P) (female terminals) 

GHH444106Courtesy of HONDA, U.S.A., INC.
Terminal number Terminal name Description
1 INJ RLY OUT (INJECTOR POWER SOURCE) Power source for PCM (injector driver)
2 IG1(DBW) (IGNITION SIGNAL ETCS) Detects ignition signal
3 IG1 VBSOL(10A) (POWER SOURCE FOR SOLENOID VALVES) Power source for solenoid valves
4 IGP1 (POWER SOURCE) Power source for PCM
5 +B VBUM(10A) (VOLTAGE BACK UP) Power source for PCM memory
6 IG1 FUEL PUMP (IGNITION SIGNAL) Detects ignition signal
7 Not used  
8 INJ RLY OUT (INJECTOR POWER SOURCE) Power source for PCM (injector driver)
9 *1 STC Outputs DC-DC converter operation signal
10 F-CAN A_L (CAN COMMUNICATION SIGNAL LOW) Sends and receives communication signal
11 F-CAN A_H (CAN COMMUNICATION SIGNAL HIGH) Sends and receives communication signal
12 F-CAN B_L (CAN COMMUNICATION SIGNAL LOW) Sends and receives communication signal
13 F-CAN B_H (CAN COMMUNICATION SIGNAL HIGH) Sends and receives communication signal
14 Not used  
15 Not used  
16 Not used  

*1: With auto idle stop system

*2: KA/KC

*3: Without electric brake booster system

Terminal number Terminal name Description
17 TCD OUT (CAMSHAFT POSITION (CMP) SIGNAL OUTPUT) Sends CMP sensor signal to engine mount control unit
18 CRK OUT (CRANKSHAFT POSITION (CKP) SIGNAL OUTPUT) Sends CKP sensor signal to engine mount control unit
19 *2 PTANK (FUEL TANK PRESSURE (FTP) SENSOR) Detects FTP sensor signal
20 VGP (MASS AIR FLOW (MAF) SENSOR + SIDE) Detects MAF sensor signal
21 *1*3 GCU MON (BRAKE BOOSTER PRESSURE SENSOR) Detects brake booster pressure sensor signal
22 FI MAIN RLY CL- (PGM-FI MAIN RELAY 1) Drives PGM-FI main relay 1, injector relay, and ignition coil relay
23 TA (INTAKE AIR TEMPERATURE (IAT) SENSOR) Detects IAT sensor signal
24 LIN(ACG) (LOCAL INTERCONNECT NETWORK) Sends and receives communication signal
25 Not used  
26 Not used  
27 FAN HI SIGNAL (RADIATOR FAN RELAY/FAN CONTROL RELAY) Drives radiator fan relay and fan control relay
28 ACCL (A/C COMPRESSOR CLUTCH RELAY) Drives A/C compressor clutch relay
29 *2 VSV (EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE) Drives EVAP canister vent shut valve
30 ST RLY 1 TO 2(STARTER CUT RELAY 1) Drives starter cut relay 1
31 VGM (MASS AIR FLOW (MAF) SENSOR - SIDE) Ground for MAF sensor signal
32 STOP SW (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal
33 APS1 (ACCELERATOR PEDAL POSITION (APP) SENSOR A) Detects APP sensor A signal
34 APS2 (ACCELERATOR PEDAL POSITION (APP) SENSOR B) Detects APP sensor B signal
35 STRLD (STARTER CUT RELAY RETURN SIGNAL) Detects starter cut relay signal
36 SG4 (SENSOR GROUND) Sensor ground
37 SG5 (SENSOR GROUND) Sensor ground
38 Not used  
39 Not used  
40 FUEL PUMP RLY CL- (IMMOBILIZER FUEL PUMP RELAY) Drives PGM-FI main relay 2
41 DBW RLY OUT (ETCS CONTROL RELAY) Drives ETCS control relay
42 ST CUT RLY2 CL- (STARTER CUT RELAY 2) Drives starter cut relay 2
43 BKSWNC (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal
44 STS (STARTER SWITCH SIGNAL) Detects starter switch signal
45 SCS (SERVICE CHECK SIGNAL) Detects service check signal
46 S-NET (SERIAL COMMUNICATION FOR IMMOBILIZER) Sends serial communication signal
47 VCC4 (SENSOR VOLTAGE) Provides sensor reference voltage
48 VCC3 (SENSOR VOLTAGE) Provides sensor reference voltage
49 LAF RLY OUT (PGM-FI SUBRELAY) Drives PGM-FI subrelay
50 FAN LO SIGNAL (A/C CONDENSER FAN RELAY) Drives A/C condenser fan relay

*1: With auto idle stop system

*2: KA/KC

*3: Without electric brake booster system

PCM Connector E (80P) (female terminals) 

GHH444107Courtesy of HONDA, U.S.A., INC.
Terminal number Terminal name Description
1 HP-B1 (HIGH PRESSURE FUEL PUMP -) Drives fuel control solenoid (build into high pressure fuel pump)
2 INJ LS1 (No. 1 INJECTOR -) Drives No. 1 injector
3 INJ LS5 (No. 5 INJECTOR -) Drives No. 5 injector
4 INJ LS2 (No. 2 INJECTOR -) Drives No. 2 injector
5 INJ LS6 (No. 6 INJECTOR -) Drives No. 6 injector
6 INJ HS3 (No. 3 INJECTOR +) Drives No. 3 injector
7 INJ LS3 (No. 3 INJECTOR -) Drives No. 3 injector
8 GND1 (GROUND) Ground for PCM
9 AFHT B1 (REAR AIR FUEL RATIO (REAR A/F) SENSOR (BANK 1, SENSOR 1) HEATER CONTROL) Drives rear A/F sensor (Bank 1, Sensor 1) heater
10 AFTHB2 (FRONT AIR FUEL RATIO (FRONT A/F) SENSOR (BANK 2, SENSOR 1) HEATER CONTROL) Drives front A/F sensor (Bank 2, Sensor 1) heater
11 SO2HT B1 (REAR SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (BANK 1, SENSOR 2) HEATER CONTROL) Drives rear secondary HO2S (Bank 1, Sensor 2) heater
12 MTR2 (THROTTLE ACTUATOR) Drives throttle actuator
13 MTR1 (THROTTLE ACTUATOR) Drives throttle actuator
14 HP+B1 (HIGH PRESSURE FUEL PUMP +) Drives fuel control solenoid (build into high pressure fuel pump)
15 INJGND2 (GROUND) Ground for PCM (injector driver)
16 INJ HS1 (No. 1 INJECTOR +) Drives No. 1 injector
17 INJ HS5 (No. 5 INJECTOR +) Drives No. 5 injector
18 INJ HS2 (No. 2 INJECTOR +) Drives No. 2 injector
19 INJ HS6 (No. 6 INJECTOR +) Drives No. 6 injector
20 INJ HS4 (No. 4 INJECTOR +) Drives No. 4 injector
21 INJ LS4 (No. 4 INJECTOR -) Drives No. 4 injector
Terminal number Terminal name Description
22 INJGND1 (GROUND) Ground for PCM (injector driver)
23 CSS (ROCKER ARM OIL CONTROL SOLENOID B (BANK 1)) Drives rocker arm oil control solenoid B (Bank 1)
24 SO2HT B2 (FRONT SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (BANK 2, SENSOR 2) HEATER CONTROL) Drives front secondary HO2S (Bank 2, Sensor 2) heater
25 GND2 LG (GROUND) Ground for PCM
26 GND3 (GROUND) Ground for PCM
27 PGM (GROUND) Ground for PCM
28 E EGR (EXHAUST GAS RECIRCULATION (EGR) VALVE) Drives EGR valve
29 IGN PULSE1 (No. 1 IGNITION COIL PULSE) Drives No. 1 ignition coil
30 IGN PULSE2 (No. 2 IGNITION COIL PULSE) Drives No. 2 ignition coil
31 VTMB1 (ROCKER ARM OIL PRESSURE SWITCH A (BANK 1)) Detects rocker arm oil pressure switch A (Bank 1) signal
32 VTMB2 (ROCKER ARM OIL PRESSURE SWITCH A (BANK 2)) Detects rocker arm oil pressure switch A (Bank 2) signal
33 VCMSW (ROCKER ARM OIL PRESSURE SWITCH B (BANK 1)) Detects rocker arm oil pressure switch B (Bank 1) signal
34 Not used  
35 ACPD (A/C PRESSURE SENSOR) Detects A/C pressure sensor signal
36 OP SENSOR (ENGINE OIL PRESSURE) Detects rocker arm oil pressure sensor signal
37 Not used  
38 TW (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1) Detects ECT sensor 1 signal
39 Not used  
40 IPB2 (IP CELL+ BANK 2) Detects front A/F sensor (Bank 2, Sensor 1) pump cell signal
41 VCENTB2 (VIRTUAL GROUND BANK 2) Provides reference voltage for front A/F sensor (Bank 2, Sensor 1)
42 VSB2 (VS CELL+ BANK 2) Detects front A/F sensor (Bank 2, Sensor 1) VS CELL signal
43 Not used  
44 VCENTB1 (VIRTUAL GROUND BANK 1) Provides reference voltage for rear A/F sensor (Bank 1, Sensor 1)
45 VSB1 (VS CELL+ BANK 1) Detects rear A/F sensor (Bank 1, Sensor 1) VS cell signal
46 IPB1 (IP CELL+ BANK 1) Detects rear A/F sensor (Bank 1, Sensor 1) pump cell signal
47 IGN PULSE3 (No. 3 IGNITION COIL PULSE) Drives No. 3 ignition coil
48 IGN PULSE4 (No. 4 IGNITION COIL PULSE) Drives No. 4 ignition coil
49 SG1 (SENSOR GROUND) Sensor ground
50 VCC1 (SENSOR VOLTAGE) Provides sensor reference voltage
51 KSSGB1 (KNOCK SENSOR 1 (BANK 1) GROUND) Sensor ground for knock sensor 1 (Bank 1)
52 KSB1 (KNOCK SENSOR 1 (BANK 1)) Detects knock sensor 1 (Bank 1) signal
53 PB (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR) Detects MAP sensor signal
54 TW2 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2) Detects ECT sensor 2 signal
55 THL2 (THROTTLE POSITION (TP) SENSOR B) Detects TP sensor B signal
56 SO2B1 (REAR SECONDARY HEATED OXYGEN SENSOR (REAR SECONDARY HO2S) (BANK 1, SENSOR 2)) Detects rear secondary HO2S (Bank 1, Sensor 2) signal
57 SO2SGB1 (REAR SECONDARY HEATED OXYGEN SENSOR (REAR SECONDARY HO2S) (BANK 1, SENSOR 2) SENSOR GROUND) Sensor ground for rear secondary HO2S (Bank 1, Sensor 2)
58 SG2 (SENSOR GROUND) Sensor ground
59 Not used  
60 Not used  
61 CRK (CRANKSHAFT POSITION (CKP) SENSOR) Detects CKP sensor signal
62 Not used  
63 Not used  
64 Not used  
65 IGN PULSE5 (No. 5 IGNITION COIL PULSE) Drives No. 5 ignition coil
66 IGN PULSE6 (No. 6 IGNITION COIL PULSE) Drives No. 6 ignition coil
Terminal number Terminal name Description
67 SG3 (SENSOR GROUND) Sensor ground
68 VCC3 (SENSOR VOLTAGE) Provides sensor reference voltage
69 KSSGB2 (KNOCK SENSOR 2 (BANK 2) GROUND) Sensor ground for knock sensor 2 (Bank 2)
70 KSB2 (KNOCK SENSOR 2 (BANK 2)) Detects knock sensor 2 (Bank 2) signal
71 EGRL (EXHAUST GAS RECIRCULATION (EGR) VALVE POSITION SENSOR) Detects EGR valve position sensor signal
72 THL1 (THROTTLE POSITION (TP) SENSOR A) Detects TP sensor A signal
73 PF (FUEL RAIL PRESSURE SENSOR) Detects fuel rail pressure sensor signal
74 SO2B2 (FRONT SECONDARY HEATED OXYGEN SENSOR (FRONT SECONDARY HO2S) (BANK 2, SENSOR 2)) Detects front secondary HO2S (Bank 2, Sensor 2) signal
75 SO2SGB2 (FRONT SECONDARY HEATED OXYGEN SENSOR (FRONT SECONDARY HO2S) (BANK 2, SENSOR 2) SENSOR GROUND) Sensor ground for front secondary HO2S (Bank 2, Sensor 2)
76 VCC2 (SENSOR VOLTAGE) Provides sensor reference voltage
77 TDC (CAMSHAFT POSITION (CMP) SENSOR) Detects CMP sensor signal
78 PCS (EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE) Drives EVAP canister purge valve
79 VTSB1 (ROCKER ARM OIL CONTROL SOLENOID A (BANK 1)) Drives rocker arm oil control solenoid A (Bank 1)
80 VTSB2 (ROCKER ARM OIL CONTROL SOLENOID A (BANK 2)) Drives rocker arm oil control solenoid A (Bank 2)