FAQ: Need ECU Pinouts? Then look inside.
11-06-2003, 10:39 PM
#26
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Re: Need ECU Pinouts? Then look inside. (aw1234dude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aw1234dude »</TD></TR><TR><TD CLASS="quote">Heres a website that i found useful while doing a swap.
http://www.hondaswap.com/swap/viewer.php?id=58</TD></TR></TABLE>
thanks a lot man!! that really helped. one stupid question for you guys: you know how its numbered a1, a25, etc. does it go from the top left corner to the bottom right corner? like a1 being at the top left and a25 being at the bottom right?
http://www.hondaswap.com/swap/viewer.php?id=58</TD></TR></TABLE>
thanks a lot man!! that really helped. one stupid question for you guys: you know how its numbered a1, a25, etc. does it go from the top left corner to the bottom right corner? like a1 being at the top left and a25 being at the bottom right?
11-06-2003, 10:58 PM
#28
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Re: Need ECU Pinouts? Then look inside. (aw1234dude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aw1234dude »</TD></TR><TR><TD CLASS="quote"> 
</TD></TR></TABLE>
that picture right there saved my *** x20. tomorrow i'm going to rewire my friend's 93 cx for a 98 dx engine, so i need to know all this ****. i was assuming it went across, instead of up-down. thanks a lot!!
</TD></TR></TABLE>that picture right there saved my *** x20. tomorrow i'm going to rewire my friend's 93 cx for a 98 dx engine, so i need to know all this ****. i was assuming it went across, instead of up-down. thanks a lot!!
11-10-2003, 12:28 PM
#31
Re: Need ECU Pinouts? Then look inside. (kr)
quick Q,
I just made an OBD2b to OBD1 adapter harness and i couldnt find the pin that tells the tach what speed the engine is spinning at (RPMS) at on the OBD 1 pinouts, mabye its there and i just cant see it, could anyone help me out?
thanks in advance!
-sander
I just made an OBD2b to OBD1 adapter harness and i couldnt find the pin that tells the tach what speed the engine is spinning at (RPMS) at on the OBD 1 pinouts, mabye its there and i just cant see it, could anyone help me out?
thanks in advance!
-sander
11-10-2003, 06:13 PM
#32
Re: Need ECU Pinouts? Then look inside. (sander)
Some one might want to check to see if im right, but i think the rpm signal comes from the igniter, and the igniter comes from A22 according to the helms, can any one confirm this??
-sander
-sander
11-26-2003, 10:26 AM
#35
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Re: Need ECU Pinouts? Then look inside. (sander)
I found a bunch of the remaining pins for the PR3 ecu. This is out of a Honda Electrical Service Manual:
A6 - Purge Cut-Off Solenoid Vavle (Si Only)
A16 & A18 - Ground (for shields on CYL/TDC/Crank Wiring)
B2 - Fast Idle Control Solienoid Vavle Control (Si Only - not present on 88 Si)
B7 - A/C on Input (HF Only - wire not present on Si
B9 - Back up Lights Switch (HF Only - wire not present on Si)
B11 - Clutch Input Switch - reports when clutch petal pressed (HF Only - wire not present on Si)
B13 - Starting input (hot when starting - also goes to main realy)
B15 & B17 - Ignition output signal (to ignitor unit in distributor) connected later in the harness)
B18 - Not Used in Si/HF
Hope that helped someone...please update the first page
A6 - Purge Cut-Off Solenoid Vavle (Si Only)
A16 & A18 - Ground (for shields on CYL/TDC/Crank Wiring)
B2 - Fast Idle Control Solienoid Vavle Control (Si Only - not present on 88 Si)
B7 - A/C on Input (HF Only - wire not present on Si
B9 - Back up Lights Switch (HF Only - wire not present on Si)
B11 - Clutch Input Switch - reports when clutch petal pressed (HF Only - wire not present on Si)
B13 - Starting input (hot when starting - also goes to main realy)
B15 & B17 - Ignition output signal (to ignitor unit in distributor) connected later in the harness)
B18 - Not Used in Si/HF
Hope that helped someone...please update the first page
05-07-2004, 04:09 PM
#36
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Re: Need ECU Pinouts? Then look inside. (Fishcat37)
This is for P2K (Australian 1996-98 EK CXi/GLi Civics)
http://www.turbod16.com/viewtopic.php?t=8133
http://www.turbod16.com/viewtopic.php?t=8133
05-21-2004, 02:54 PM
#37
Honda-Tech Member
Re: Need ECU Pinouts? Then look inside. (saboteurEK)
05-25-2004, 04:14 PM
#39
Honda-Tech Member
Re: Need ECU Pinouts? Then look inside. (Spade)
KEY:
(Wire color), (Function/Description (if need be)), (Voltage Value (DC Volts Unless otherwise specified)
V = Volts
Wht = White
Blk = Black
Grn = Green
Yel = Yellow
Brn = Brown
Blu = Blue
Org = Orange
KOEO = Key on; Engine OFF
KOER = Key on; Engine Running
This is for a Prelude but I will correct it with a Civic one tommorrow (they are for the most part the same)
Modified by Turbogixxer at 9:08 AM 10/4/2008
(Wire color), (Function/Description (if need be)), (Voltage Value (DC Volts Unless otherwise specified)
V = Volts
Wht = White
Blk = Black
Grn = Green
Yel = Yellow
Brn = Brown
Blu = Blue
Org = Orange
KOEO = Key on; Engine OFF
KOER = Key on; Engine Running
Originally Posted by Spade
OBD1
A1-INJ1 INJ1 Brown, Battery Voltage with KOEO
A2-INJ4 INJ4 Yellow, Battery Voltage with KOEO
A3-INJ2 INJ2 Red, Battery Voltage with KOEO
A4-VTS VTEC solenoid GRN/YEL, N/a
A5-INJ3 INJ3 Blue, Battery Voltage with KOEO
A6-PO2SHTC O2 sensor (heating element) Org/Wht, Battery Voltage with KOEO
A7-FLR1 fuel pump Grn/BLK, Battery Voltage with KOEO
A8-empty A7 and A8 have the same circurt, so they can be the same
A9-IACV IAC valve Blk/Blu, About 10v KOEO on Warm engine
A10-empty
A11- This is EGR Control Solenoid Valve (if the ECU has) Red, N/A
A12-FANC engine coolant temp switch Blu/red, N/A
A13-MIL MIL (check engine light) Blu/wht, N/A
A14-empty
A15-ACC (a/c compressor clutch) Red/Blu, N/A
A16-ALT C alternator Wht/Grn, N/A
A17-IAB IAB Solenoid Pink, N/A
A18- Org/Red, Transmission Control Module (A/T), N/A
A19- White, Intake control solenoid, Battery Voltage with KOEO
A20-PCS EVAP purge control solenoid Red/Grn, N/a
A21-ICM ICM Yel/Grn, Ignition Control Module (ICM) Output signal, About 10V KOEO
A22- *per Sander* Ignitor same as A21
A23-PG1 ground Black, Power ground, less than 1V
A24-PG2 ground same as A23
A25-IGP2 to main relay and to gound for o Yel/blk, Battery positive from Main relay, Battery Voltage with KOEO
A26-LG1 gound Blk/red, less than 1V
B1-IGP2 to pin A25 Yel/Blk, Battery positive from Main relay, Battery Voltage with KOEO
B2-LG2 ground to shields for CYP & TDC Brown/Blk, Less than 1V
B3- Orange, upshift/downshift comparative input, N/A
B4- Pink, upshift/downshift comparative input, N/A
B5-ACS a/c switch Blu/Blk, A/c input, About 5V with KOEO & A/C off; less than 1V KOER with A/C & blower on
B6-empty
B7- Light green, Park/Neutral switch (A/T), Less than 1V in Park or Neutral with KOEO; 5V in Park or neutral with KOER; Battery voltage in all other positions
B8-PSPSW PSP switch Red/Green, Power steering oil pressure switch, 0V KOEO; Battery Voltage KOER While slowly turning steering wheel
B9-STARTER SIGNAL starter signal Blue/red, Battery Voltage in the START position (clutch depressed on M/T models)
B10-VSS vehicle speed sensor Orange, Pulses 0-12V while turning the left front wheel
B11-CYP P CYP -P Orange, CYP sensor input, N/A
B12-CYP M CYP -M White, CYP sensor signal, N/A
B13-TDC P TDC -P Org/Blue, TDC sensor input, N/A
B14-TDC M TDC -M Wht/Blue, TDC sensor signal, N/A
B15-CKP P CKP -P Blu/Green, CKP Sensor input, N/A
B16-CKP M CKP -M Blu/yel, CKP Sensor signal, N/A
D1-VBU Back Up Power Wht/Yel, Battery positive From battery through Fuse Box, Battery Voltage at ALL times
D2-BKSW brake switch Grn/wht, Battery voltage at all times
D3-KS Knock Sensor Red/Blue, N/A
D4-SCS service check connector Brown/Wht, About 5V (M/T); About 11V (A/T)
D5-empty
D6-VTM VTEC pressure switch Light Blue, N/A
D7-TXD/RXD (data link connector) Light Green/Red, N/A
D8- Baro output to TCM
D9-ALT F alternator Wht/Red, Alternator Charging Signal, About 4.5V KOEO; Decreases under Electrical load (Headlights & rear defogger on) At warm idle
D10-ELD electric load detector input Grn/Blk, N/A
D11-TPS TPS Signal Red/Blk, About 0.5V KOEO with throttle fully closed; About 4.5V KOEO with throttle fully open
D12- Wht/Blk, EGR Valve Lift sensor, About 1.2V KOEO
D13-ECT ECT sensor input Yel/Blu, About 5V KOEO (varies with temperature)
D14-PHO2S O2 sensor White, heated 02 sensor Signal, 0.4-0.5V when ignition is turned on; drops to less than 0.1V within 2 minutes
D15-IAT IAT sensor Red/Yel, Intake Air Temperature signal, .05-4.5V KOEO(Varies with temperature)
D16-VREF VREF 5v output to the TCM
D17-MAP Map Signal Wht/Blu, About 3V KOEO (Varies with Temperature)
D18- Light Green/Blk, Transmission Control Module (A/T Only), N/A
D19 - Red/Wht, Reference Voltage, About 5V KOEO
D20 - Yel/Wht, Reference Voltage, About 5V KOEO
D21 - Blue/Wht, Sensor ground, Less than 1V
D22 - Green/Wht, Sensor ground, Less than 1V
there is no "C' section
A1-INJ1 INJ1 Brown, Battery Voltage with KOEO
A2-INJ4 INJ4 Yellow, Battery Voltage with KOEO
A3-INJ2 INJ2 Red, Battery Voltage with KOEO
A4-VTS VTEC solenoid GRN/YEL, N/a
A5-INJ3 INJ3 Blue, Battery Voltage with KOEO
A6-PO2SHTC O2 sensor (heating element) Org/Wht, Battery Voltage with KOEO
A7-FLR1 fuel pump Grn/BLK, Battery Voltage with KOEO
A8-empty A7 and A8 have the same circurt, so they can be the same
A9-IACV IAC valve Blk/Blu, About 10v KOEO on Warm engine
A10-empty
A11- This is EGR Control Solenoid Valve (if the ECU has) Red, N/A
A12-FANC engine coolant temp switch Blu/red, N/A
A13-MIL MIL (check engine light) Blu/wht, N/A
A14-empty
A15-ACC (a/c compressor clutch) Red/Blu, N/A
A16-ALT C alternator Wht/Grn, N/A
A17-IAB IAB Solenoid Pink, N/A
A18- Org/Red, Transmission Control Module (A/T), N/A
A19- White, Intake control solenoid, Battery Voltage with KOEO
A20-PCS EVAP purge control solenoid Red/Grn, N/a
A21-ICM ICM Yel/Grn, Ignition Control Module (ICM) Output signal, About 10V KOEO
A22- *per Sander* Ignitor same as A21
A23-PG1 ground Black, Power ground, less than 1V
A24-PG2 ground same as A23
A25-IGP2 to main relay and to gound for o Yel/blk, Battery positive from Main relay, Battery Voltage with KOEO
A26-LG1 gound Blk/red, less than 1V
B1-IGP2 to pin A25 Yel/Blk, Battery positive from Main relay, Battery Voltage with KOEO
B2-LG2 ground to shields for CYP & TDC Brown/Blk, Less than 1V
B3- Orange, upshift/downshift comparative input, N/A
B4- Pink, upshift/downshift comparative input, N/A
B5-ACS a/c switch Blu/Blk, A/c input, About 5V with KOEO & A/C off; less than 1V KOER with A/C & blower on
B6-empty
B7- Light green, Park/Neutral switch (A/T), Less than 1V in Park or Neutral with KOEO; 5V in Park or neutral with KOER; Battery voltage in all other positions
B8-PSPSW PSP switch Red/Green, Power steering oil pressure switch, 0V KOEO; Battery Voltage KOER While slowly turning steering wheel
B9-STARTER SIGNAL starter signal Blue/red, Battery Voltage in the START position (clutch depressed on M/T models)
B10-VSS vehicle speed sensor Orange, Pulses 0-12V while turning the left front wheel
B11-CYP P CYP -P Orange, CYP sensor input, N/A
B12-CYP M CYP -M White, CYP sensor signal, N/A
B13-TDC P TDC -P Org/Blue, TDC sensor input, N/A
B14-TDC M TDC -M Wht/Blue, TDC sensor signal, N/A
B15-CKP P CKP -P Blu/Green, CKP Sensor input, N/A
B16-CKP M CKP -M Blu/yel, CKP Sensor signal, N/A
D1-VBU Back Up Power Wht/Yel, Battery positive From battery through Fuse Box, Battery Voltage at ALL times
D2-BKSW brake switch Grn/wht, Battery voltage at all times
D3-KS Knock Sensor Red/Blue, N/A
D4-SCS service check connector Brown/Wht, About 5V (M/T); About 11V (A/T)
D5-empty
D6-VTM VTEC pressure switch Light Blue, N/A
D7-TXD/RXD (data link connector) Light Green/Red, N/A
D8- Baro output to TCM
D9-ALT F alternator Wht/Red, Alternator Charging Signal, About 4.5V KOEO; Decreases under Electrical load (Headlights & rear defogger on) At warm idle
D10-ELD electric load detector input Grn/Blk, N/A
D11-TPS TPS Signal Red/Blk, About 0.5V KOEO with throttle fully closed; About 4.5V KOEO with throttle fully open
D12- Wht/Blk, EGR Valve Lift sensor, About 1.2V KOEO
D13-ECT ECT sensor input Yel/Blu, About 5V KOEO (varies with temperature)
D14-PHO2S O2 sensor White, heated 02 sensor Signal, 0.4-0.5V when ignition is turned on; drops to less than 0.1V within 2 minutes
D15-IAT IAT sensor Red/Yel, Intake Air Temperature signal, .05-4.5V KOEO(Varies with temperature)
D16-VREF VREF 5v output to the TCM
D17-MAP Map Signal Wht/Blu, About 3V KOEO (Varies with Temperature)
D18- Light Green/Blk, Transmission Control Module (A/T Only), N/A
D19 - Red/Wht, Reference Voltage, About 5V KOEO
D20 - Yel/Wht, Reference Voltage, About 5V KOEO
D21 - Blue/Wht, Sensor ground, Less than 1V
D22 - Green/Wht, Sensor ground, Less than 1V
there is no "C' section
Modified by Turbogixxer at 9:08 AM 10/4/2008
08-18-2004, 04:22 PM
#43
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Re: Need ECU Pinouts? Then look inside. (stock-n-drop)
ok, where can i find wiring pinouts for an obd1 VX ecu? haha...dont ask why i need this, i just do. thanks.
08-24-2004, 12:45 AM
#44
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Re: Need ECU Pinouts? Then look inside. (reaction360)
So the three wires for VTEC are:
- A4 - VTS - VTEC Solenoid
- D3 - KS - Knock sensor
- D6 - VTM - VTEC pressure switch
Is this correct?
- A4 - VTS - VTEC Solenoid
- D3 - KS - Knock sensor
- D6 - VTM - VTEC pressure switch
Is this correct?
08-25-2004, 07:32 PM
#45
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Re: Need ECU Pinouts? Then look inside. (onecleanDA)
01-29-2006, 05:12 AM
#50
Re: Need ECU Pinouts? Then look inside. (aw1234dude)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ISPhuevos »</TD></TR><TR><TD CLASS="quote">pump
</TD></TR></TABLE>
</TD></TR></TABLE>
