1999 Honda Civic Logo
seth ast Posted on Apr 11, 2016
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EX Vtec. Where can I get OBD2 engine harness wiring detail?

Was converted from and auto to manual, have a blue wire next to green wire in to a 2-pin connector that cant find where it plugged in. Need obd2 engine harness detail to help diagnose.

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Richard Faber

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  • Honda Master 1,444 Answers
  • Posted on Apr 11, 2016
Richard Faber
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Online look up obd2 harness diagram

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2001 GMC Yukon stereo wiring colors

PART COLOR LOCATION 12 VOLT CONSTANT RED (+) @ IGNITION SWITCH HARNESS STARTER YELLOW (+) @ IGNITION SWITCH HARNESS STARTER 2 N/A IGNITION 1 PINK (+) @ IGNITION SWITCH HARNESS IGNITION 2 WHITE (+), See NOTE #6 @ IGNITION SWITCH HARNESS IGNITION 3 N/A ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS ACCESSORY/HEATER BLOWER 2 N/A KEYSENSE LIGHT GREEN (-) @ IGNITION SWITCH HARNESS PARKING LIGHTS ( - ) WHITE (-) @ BCM, LIGHT BLUE plug, Pin A5, See NOTE #4 PARKING LIGHTS ( + ) BROWN (+) @ BCM, LIGHT BLUE Plug, Pin B6, See NOTE #4 POWER LOCK LIGHT BLUE (TYPE A) @ BCM, BROWN plug, Pin A4, See NOTE #4 POWER UNLOCK WHITE (TYPE A) @ BCM, BROWN Plug, Pin A3, See NOTE #4 DOOR TRIGGER See NOTE #2 @ BCM, See NOTE #4 DOMELIGHT SUPERVISION TAN (-) @ BCM, PURPLE Plug, Pin B4, See NOTE #4 TRUNK RELEASE N/A SLIDING POWER DOOR N/A HORN BLACK (-) @ STEERING COLUMN HARNESS TACH WHITE (AC) @ ECM, See NOTE *2 WAIT TO START LIGHT DARK BLUE (-), See NOTE #5 @ INSTRUMENT CLUSTER BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL FACTORY ALARM DISARM LIGHT GREEN (-) @ BCM, PURPLE plug, Pin B3, See NOTE #4 ANTI-THEFT YELLOW (+), ORANGE/BLACK (-) and RED/WHITE (Not used) GM's PASSLOCK 2 System, these wires exit the Ignition Switch Tumbler together and are in the Main Ignition Switch Harness in the Column. EXTRA INFORMATION NOTE #1: This vehicle is equipped with the PASSLOCK 2 ANTI-THEFT SYSTEM and will require a 791 Bypass Module for Remote Starting, to order go to the SECURITY BYPASS MODULE Page on this website. NOTE #2: This vehicle has 2 door trigger wires, the DRIVERS DOOR is a TAN (-) PURPLE plug, B4 and ALL OTHER doors BLUE/WHITE (-) LIGHT BLUE plug, Pin B11 at the BCM use both Door Trigger wires and DIODE ISOLATE when connecting to an ALARM SYSTEM, to connect, See DIAGRAM. NOTE #3; The ECM (Engine Control Module) is located near the battery, down low, between the fender and the fan, under a BLACK plastic cover. On the 4.3L engine it is in a 20 pin connector labled RED. On the 4.8L, 5.3L and 6.0L engines it is located at Pin 10 in the RED connector NOTE #4: The BCM (Body Control Module) is located behind the drivers side of dash, with the plugs facing the rear of the vehicle. NOTE #5: when hooking up a remote starter, if you cannot get the (+) or (-) Wait to Start wire on the Remote Starter to work properly, you will then need to disconnect this wire and Program the Remote Starter for the 5, 10, 15 or 20 Second Wait to Start Timmer in the Installation manual. NOTE #6: IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!
tip

ALARM, CRUISE CONTROL, and STEREO Wiring Color Codes for 1996 Honda Civic This...

ALARM, CRUISE CONTROL, and STEREO Wiring Color Codes for 1996 Honda Civic

This FixYa Tip is for the purpose of installing an Alarm, Remote Starter, Cruise Control, and / or Car Stereo into the vehicle listed in the subject line.

The wires listed are the ones you will need to successfully complete the task.

Some vehicles require additional relays and / or modules to bypass factory security. If they are required - it will be in the NOTES section below the wiring colors.

The following FixYa TIP is good for all Honda Civics for the following production years:

1996


STEREO WIRING COLOR CHART:
Constant 12V+: Blue/White
Switched 12V+: Yellow/Red
Ground: Black
Illumination: Red/Black
Dimmer: n/a
Antenna: Driver's Pillar

Front Speakers:
Left Front (+) Blue
Left Front (-) Gray/Black
Right Front (+) Red/Green
Right Front (-) Brown/Black

Rear Speakers:
Left Rear (+) Blue/Yellow
Left Rear (-) Gray/White
Right Rear (+) Red/Yellow
Right Rear (-) Brown/White

NOTES: Retain Keyless entry with secondary Harness Listed Below
Additional Accessories:
Metra Brand Dash Kit: 89-30-7891 - 99-7891 - 99-7898
Metra Brand Wiring Harness: 70-1720 W/Keyless Entry # 70-1720T
Metra Brand Antenna Adapter: n/a




ALARM / REMOTE START WIRING CHART:
Constant 12V+: White - Ignition Switch Harness
Starter: Black/White - Ignition Switch Harness
Ignition: Black/Yellow - Ignition Switch Harness
Ignition 2: Yellow - Ignition Switch Harness
Accessory: White/Black - Ignition Switch Harness
Tach: Blue - Coil
Brake Switch: Green/White - Brake Switch
Trunk Pin: Blue/Black - (-) Driver's Kick Panel
Parking Lights: Red/Black - (+) Driver's Kick Panel
Head Lamp: Red/White (L) Red/Blue (R) - Steering Column
Hood Pin: n/a
Door Trigger: Light Green/Red - (-) Above Fuse Panel
Door Lock: Green/White - (-) 2 pin connector taped to blue connector behind fuse box
Door Unlock: Green/Orange - (-) Module Behind Radio
Horn: Grey - Steering Column or GREEN connector behind radio

NOTES: - none -



CRUISE CONTROL:
Constant 12V+: White - Ignition Switch Harness or Use Hot Side of Brake
Switched 12V+: Black/Yellow - Ignition Switch Harness
Ground: Use Chassis Near Cruise Control Module
Hot Side of Brake: n/a - Brake Switch
Cold Side of Brake: Green/White - Brake Switch
Tach: Blue - Coil
VSS Wire : Blue/White - Driver's Side Dash Footwell, Grey connector.


NOTES: PPM - 4000PPM
ROSTRA Control Arm # 250-3421/250-1483
ROSTRA Throttle Adapter #250-4249

Vehicles with Manual Transmission require Clutch Switch.
Some vehicles may require a speed signal generator and/or other parts/adapters not listed above.
Rostra® Cruise Control module switch settings may differ if you use a speed signal generator or magnets and a pick up coil.

Thanks for using FixYa!! Please see my other tips on GPS, Car Audio, Large Appliances, and more.
0helpful
1answer

Whats the name of the wiring harness thats needed in a swap from non vtec to vtec

92-00 Honda Engine Swap Wiring Guide VTEC AND NON ...

honda-tech.com/.../92-00-honda-engine-swap-wiring-guide-vtec-non-vt...
Oct 8, 2011 - 92-00 Swap Wiring Guide for VTEC and Non-VTEC ... try to compile one thread that would try to answer pretty much 95% of all questions ... I wanted to do this because often times I end up posting the same thing to ... to ECU harness so using an EX/SI 92-95 engine harness will make VTEC plug and play.

97 accord non VTEC to VTEC ' HondaSwap

hondaswap.com > Model Specific > Accord
Jan 16, 2010 - 15 posts - ‎6 authors The distributors may be different on the vtec/non vtec. .... As was previously stated, allyou need to do is add wiring for VTEC. ... that connect to the ecu to the connectorsthat wire in your engine harness while the engine is out... f22b2 non vetec swap to f22b vtec need help asap
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I need to know how to wire up the motor of a 95 honda prelude h23 vtec

go to a local junk yard and pull the computers and the complte wiring harness out of a car with a vtec, your old computer will not work with that engine you need to replace all the electrical wiring harnesses
0helpful
1answer

Es lexus 300 p 1705...What is this?

DTC P1705 - NC2 (Direct Clutch Speed Sensor) Revolution Sensor Circuit malfunction or Direct Clutch Speed Sensor Output is 300 RPM or less with Vehicle at 20 MPH or more & with Park/Neutral Position Switch Off

Most probably you have an electrical fault causing the problem and attached is a diagnostic procedure. It could be 2 separate problems and after rectifying the P1705 only would you know it is single or 2. Repair manual shows right on top of transmission, black sensor with single bolt, 2 wire plug. P/N 89413-08020 list price $113.80

NOTE: DTC P1705 is set when PCM receives 2 gear position signals at the same time.

1. Turn ignition on. If any A/T gear position indicator lights remain illuminated when gear selector is moved from that gear, go to next step. If all A/T gear position indicator lights turn off when gear selector is moved from that gear, system is okay at this time.

2. Disconnect A/T gear position switch connector. If all A/T gear position switch indicators go out, replace A/T gear position switch. If all A/T gear position switch indicators do not go out, go to next step.

3. Reconnect A/T gear position switch connector. Shift through all gear positions except Reverse. Using a DVOM, measure voltage between 16-pin PCM harness connector "D", terminal No. 6 (Green/Red wire on 2.3CL or White wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires).

If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Green/Red or White wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Green/Red or White wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

4. Shift through all gear positions except Neutral and Park. Measure voltage between 16-pin PCM harness connector "D", terminal No. 13 (Blue/White wire on Accord or Light Green wire on 2.3CL and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Blue/White or Light Green wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Blue/White or Light Green wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

5. Shift through all gear positions except "D4". Measure voltage between 16-pin PCM harness connector "D", terminal No. 9 (Light Green/Black wire on 2.3CL or Yellow wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Light Green/Black or Yellow wire between 16-pin PCM harness connector "D" and A/T gear position switch. Repair as necessary. If Light Green/Black or Yellow wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

6. Shift through all gear positions except "D3". Measure voltage between 16-pin PCM harness connector "D", terminal No. 8 (Green/Blue wire on 2.3CL or Pink wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Green/Blue or Pink wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Green/Blue or Pink wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

7. Shift through all gear positions except "2". Measure voltage between 16-pin PCM harness connector "D", terminal No. 14 (Green/Yellow wire on 2.3CL or Blue wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Green/Yellow or Blue wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Green/Yellow or Blue wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

8. Shift through all gear positions except "1". Measure voltage between 16-pin PCM harness connector "D", terminal No. 15 (Light Green/White wire on 2.3CL or Brown wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, check for loose PCM harness connectors. Replace PCM with a known- good unit if necessary. If battery voltage is not present, check for a short in Light Green/White or Brown wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Light Green/White or Brown wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.


Hope helps.
3helpful
2answers

What other engine will fit a 97 civic ex?

The 96-98 Civic EX came with an OBD2A D16Y8 engine. That is the only engine that will go in as a direct replacement with your current engine ECU. It's an SOHC VTEC engine that has two extra connections not found on the other 96-98 Civic engines - a VTEC solenoid and a special oil sensor used to determine if VTEC engagement is possible. If you swap in an older Civic engine (92-95 generation) you'll have to convert the car to OBD1 (requires a special adapter hardness) and run the ECU that goes with whatever engine you use. This will break functionality of your OBD2 diagnostics port, and depending on which state you live in will cause you to fail emissions checks. If you install a D16Y8 engine from a 99-00 Civic EX, you will have to swap the intake and exhaust manifolds from your old engine to the new engine, and you will be able to continue to run your existing OBD2A wiring and ECU. The 99-00 Civic EX engines have additional sensors, since those engines are OBD2B. The easiest fix would be to find a SOHC VTEC D16Y8 from a 96-98 Civic EX, as it would be a direct plug and play replacement.
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How do I wire a remote door lock to my 1995 mitsubishi eclipse , what are the wire colors for the power door locks?

Hope this helps. It's for a 2004 eclipse remote start.

12volts white/red (40A) + ignition harness
Starter black/red + ignition harness
Second Starter N/A
Ignition green + ignition harness
Second Ignition N/A
Third Ignition N/A
Accessory blue/red + ignition harness
Second Accessory blue/black + ignition harness
Keysense blue/red ignition harness
Notes: This wire rests at ground, and goes to an open circuit when the key is inserted into the ignition cylinder.
Power Lock purple - pin 33 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Power Unlock lt. green/red - pin 34 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Lock Motor lt. green 5wi pin 19, 28 pin plug below fuses
Unlock Motor green/red 5wi pin 22 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Parking Lights+ green/white + pin 2, 15 pin plug above fuses
Parking Lights- N/A
Hazards green - pin 55 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Turn Signal(L) green/blue + pin 8, 15 pin plug above fuses
Turn Signal(R) green/yellow + pin 13, 15 pin plug above fuses
Reverse Light red/blue + pin 9, 43 pin plug in driver kick
Door Trigger see notes - see notes
Notes: The driver door trigger is lt. green, pin 6, in a 15 pin plug above the fuses. The passenger door is lt. green/black in pin 65 at the ETACS ECU. Use both wires and diode isolate each.

The ETACS ECU is attached to the back of the fuse box.
Dome Supervision green/orange - pin 1, 3 pin plug above fuses
Trunk/Hatch Pin red - pin 62 or 37 at ETACS ECU
Notes: It is in pin 62 on the coupes, and in pin 37 on the convertible spyders.

The ETACS ECU is attached to the back of the fuse box.
Hood Pin green/red - pin 24 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Trunk/Hatch Release green/white 5wi pin 32 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Power Sliding Door N/A
Factory Alarm Arm lt. green/black - pin 42 at ETACS ECU
Notes: Meter this wire while turning the key in the driver door key cylinder.

The ETACS ECU is attached to the back of the fuse box.
Factory Alarm Disarm orange - pin 25 at ETACS ECU
Notes: Meter this wire while turning the key in the driver door key cylinder.

The ETACS ECU is attached to the back of the fuse box.
Disarm No Unlock blue/red - pin 27 at ETACS ECU
Notes: Meter this wire while turning the key in the hatch/trunk key cylinder.

The ETACS ECU is attached to the back of the fuse box.
Tachometer white or black/white ac engine speed detection connector
Notes: The engine speed detection connector is a single pin connector in the fuse/relay box under the hood.

Can also go to one of the ignition coils or the distributor assembly and use the black/blue or white/green wire.
Wait to start N/A
Brake Wire green/orange + brake pedal switch
Parking Brake yellow/green - parking brake switch
Horn Trigger lt. green/black - pin 44 at ETACS ECU
Notes: The ETACS ECU is attached to the back of the fuse box.
Memory Seat 1 N/A
Memory Seat 2 N/A
Memory Seat 3 N/A
Interface Module: Category:
Immobilizer Bypass Required:
Yes Type:
Transponder
Part #: 556UW
Alternate Part1 #: DesignTech 20402
Alternate Part2 #: DesignTech 29402
Notes: Standard on all models.

Good luck.
0helpful
1answer

Installing new radio

Factory in-dash wire harness that
snaps into the factory radio.
AS VIEWED FROM MATING END OF CONNECTOR
E F G H I N O P
A B C D J K L M
Note:
using an optional snap on wire harness adapter will simplify the wiring. Most snap on
wire harness adapters have already converted and color coded the wires from the auto
makers in dash wire harness to match typical aftermarket radio wire colors.
** The wire colors listed in the chart above are typical for these vehicles during these years
but may not be the exact colors for this vehicle. This is another reason to use a snap on
wire harness adapter. **
Typical Honda/Acura "Typical" New Radio
Pin What It Is In Dash Wire Color Equivalent Wire Color
A Right Rear Spkr (+) Red w/ Yellow Stripe Purple
B Left Rear Spkr (+) Blue w/ Yellow Stripe Green
C Power Antenna Trigger Brown w/ White Stripe Blue or Blue w/ Wht Stripe
D +12 Volt Ignition Wire Yellow w/ Red Stripe Red
E Right Rear Spkr (-) Brown w/ White Stripe Purple w/ Black Stripe
F Left Rear Spkr (-) Gray w/ White Stripe Green w/ Black Stripe
G Ground Wire Black Black
H Do Not Use
I Do Not Use
J +12 Volt Battery Wire White w/ Yellow or Blu Stripe Yellow
K Dash Light Dimmer Wire Orange
L Left Front Spkr (+) Blue w/ Green Stripe White
M Right Front Spkr (+) Red w/ Green Stripe Gray
N Do Not Use
O Left Front Spkr (-) Gray w/ Black Stripe White w/ Black Stripe
P Right Front Spkr (-) Brown w/ Black Stripe Gray w/ Black Stripe
1helpful
1answer

Connector for Speed Sensor on1996 Honda Accord Auto Trans.

If you are talking about just plugging into the speed sensor yes. A VTEC and NON-VTEC are one and the same.
3helpful
2answers

Diagnostic codes

Please rate me solved...thanks!
DTC P1259: VTEC SYSTEM MALFUNCTION
1. Perform PCM reset procedure. See SELF-DIAGNOSTICS - INTRODUCTION article. Start engine
and run at 3000 RPM with no loads and transmission in Park or Neutral until radiator fan comes on. Road
test vehicle. Accelerate in 1st gear to an engine speed over 4000 RPM and hold that engine speed for at
least 2 seconds. If DTC P1259 is not indicated during first road test, repeat road test 2 more times. If DTC
P1259 is indicated, go to next step. If DTC P1259 is not indicated, problem is intermittent. System is
okay at this time. Check for poor connections or loose wires at VTEC solenoid valve connector and PCM.
See ENGINE PERFORMANCE WIRING DIAGRAMS article. Repair as necessary.
2. Turn ignition off. Disconnect VTEC pressure switch 2-pin connector. Check for continuity between
VTEC pressure switch terminals. If continuity exists, go to next step. If continuity does not exist, replace
VTEC pressure switch.
3. Turn ignition on. Measure voltage between ground and VTEC pressure switch harness connector terminal
No. 2 (Blue/Black wire). If about 12 volts exist, go to next step. If about 12 volts do not exist, check for
an open or short in Blue/Black wire between VTEC pressure switch and PCM 31-pin connector "C"
terminal No. 10. Repair as necessary. If wire is okay, substitute a known-good PCM and recheck. See
SUBSTITUTING PCM in SELF-DIAGNOSTICS - INTRODUCTION article. If symptom or problem
goes away, replace original PCM.
4. Measure voltage between VTEC pressure switch harness connector terminals. If battery voltage exists, go
to next step. If battery voltage does not exist, repair open in Brown/Black wire between VTEC pressure
switch and ground connector located on left side of engine, under throttle plate, between end of radiator
hose and cooling fan switch. See ENGINE PERFORMANCE WIRING DIAGRAMS article. If wire is
okay , substitute a known-good PCM and recheck. See SUBSTITUTING PCM in SELFDIAGNOSTICS
- INTRODUCTION article. If symptom or problem goes away, replace original PCM.
5. Turn ignition off. Disconnect VTEC solenoid valve connector. Measure resistance between ground and
VTEC solenoid valve connector. See ENGINE PERFORMANCE WIRING DIAGRAMS article. If
resistance is 14-30 ohms, go to next step. If resistance is not 14-30 ohms, replace VTEC solenoid valve.
6. Remove VTEC pressure switch and install Pressure Gauge Adaptor (07NAJ-P07010A) and A/T Low
Pressure Gauge (07406-0070300). Reinstall VTEC pressure switch into adaptor. Connect tachometer.
Start engine and with no loads and transmission in Park or Neutral until radiator fan comes on. Because
engine is running with no load, oil pressure must be checked within one minute. Check oil pressure at
engine speeds of 1000, 2000 and 3000 RPM. If oil pressure is less than 7 psi (48 kPa), go to next step. If
oil pressure is 7 psi (48 kPa) or more, check VTEC solenoid valve. See SYSTEM & COMPONENT
TESTING article.
7. Turn ignition off. Disconnect VTEC solenoid valve connector. Connect a fused jumper wire between
battery voltage and VTEC solenoid valve connector. Start engine and check oil pressure at 3000 RPM. If
oil pressure is more than 57 psi (393 kPa), go to next step. If oil pressure is 57 psi (393 kPa) or less,
check VTEC solenoid valve. See SYSTEM & COMPONENT TESTING article.
8. Ensure jumper wire is still connected to VTEC solenoid valve connector. Start engine and allow it to idle.
Set engine speed to more than 4000 RPM and measure voltage between ground and PCM 31-pin
connector "C" terminal No. 10 (Blue/Black wire). See ENGINE PERFORMANCE WIRING
DIAGRAMS article. If battery voltage exists, go to next step. If battery voltage does not exist, replace
VTEC pressure switch.
9. Turn ignition off and disconnect jumper wire. Check for continuity between VTEC solenoid valve
harness connector and PCM 25-pin connector "B" terminal No. 12 (Green/Yellow wire). See Fig. 2 . See
ENGINE PERFORMANCE WIRING DIAGRAMS article. If continuity exists, go to next step. If
continuity does not exist, repair open in Green/Yellow wire between VTEC solenoid valve connector and
PCM 25-pin connector "B" terminal No. 12.
10. Check for continuity between ground and VTEC solenoid valve connector. See ENGINE
PERFORMANCE WIRING DIAGRAMS article. If continuity exists, repair short in Green/Yellow
wire between VTEC solenoid valve connector and PCM 25-pin connector "B" terminal No. 12. If
continuity does not exist, substitute a known-good PCM and recheck. See SUBSTITUTING PCM in
SELF-DIAGNOSTICS - INTRODUCTION article. If symptom or problem goes away, replace original
PCM

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