Acura
vehicles 1986-95 obd1 code retrieval
There are a
few different ways to retrieve the codes for “check engine light” for Acura
vehicles. One method is to use a led light (sometimes 2 led lights) on the
computer or controller box itself. If it has 2 led lights, the color is red and
amber. The red is used for flashing the codes whereas the amber is used for
adjustment. If you have only a single led light indicator, then that is used
for flashing the code.
The
controller box can be found by lifting the carpet of the passenger side front
foot well or floorboard. You can see the led lights without removing the
controller. On other models, you can find the controller under the driver or
passenger front seat.
Shown below
is the actual OBD1 location:
The second
way to get the code is using a jumper wire on the diagnostic connector located
on the kick panel at the front passenger side. You then watch the codes being
flashed at the dash panel after you turn the key on. To read the code being
flashed is easy. Example: Code 23 is 2 long flashes followed by 3 short
flashes. A longer pause separates the next code that follows.
Any Acura
Vehicles made before 1995 as shown below can use OBD1 testing system
Here are
Acura vehicles 1986-95 general codes:
Code 0
Electronic control unit (ecu)
Code 1 02
(oxygen) sensor
Code 3 and
5 map sensor
Code 4
Crank angle sensor
Code 6
Coolant temperature sensor
Code 7
Throttle angle sensor
Code 8
Crank angle sensor (TDC)
Code 9
Crank angle sensor (CLY)
Code 10
Intake air temperature sensor
Code 12 EGR
system fault
Code 13
Atmospheric pressure sensor
Code 14
Electronic air control valve
Code 15
Ignition output signal
Code 16
Fuel injector fault
Code 17
Vehicle speed sensor
Code 21
Spool solenoid valve
Code 22
Valve timing oil pressure switch fault
Code 23
Knock sensor
Code 41
Oxygen sensor heater fault
Code 43
Fuel supply system
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