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Where is diagnostic connector locationon 1994 toyota base pickup

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The check engine light is used to blink out the trouble codes. The diagnostic connector is usually under the hood on driver's side, back near the firewall. Sometimes under the driver's dash. Use a jumper wire and connect terminals TE1 and T1. Then turn key to on, not start, and the check engine light will blink out the trouble codes. If no codes are present, the check engine light will stay on constantly. Remove jumper wire when diagnostics completed. To clear codes after repairs, disconnect the negative battery terminal for one minute, and then reconnect.
This site has Toyota code explanations:

Posted on Dec 30, 2013

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SOURCE: Remove and replace 1994 Toyota pickup starter

disconnect battery ..remove skid plate..remove battery/ignition wire from starter (2 nuts)..remove starter bolts(2 )

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SOURCE: 1994 toyota 22re 4x4 pickup fuel injector wiring diagram

the color of the plastic plug does not matter... You will have two injector plugs with white/red and yellow wires - those two go to cyl#'s 1 and 3.
the other two plugs will have white and blur wires.. those two plugs go to injectors # 2 and 4.

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alicantecoli
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SOURCE: 1994 toyota pickup, 4x4, 3.0

if i am not mistaken then these wires can be connected either way around as its only a temperature sensor in the air flow

Posted on Jul 07, 2010

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Can a diagnostic connector on 1995 Toyota 4 runner be jumped over with jumper wire to get check engine codes?


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Where is diagnostic connector location on 1994 toyota base pickup


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Just need to know what to jump on diagnostic connector box.to get the codes thats all 1994 toyota pickup 22 r e


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1 Answer

What color is the power wire in 1994 toyota pick up


this might help
1994 Toyota Pickup Car Security Wiring Diagram
Battery Constant 12v+ Positive Wire (+): White And White/Red
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness
Starter Positive Wire (+): Black
Starter Positive Wire Location: Ignition Switch Harness
Ignition Positive Wire (+): Black/Yellow
Ignition Positive Wire Location: Ignition Switch Harness
Second Ignition Positive Wire (+): Black/Yellow Or Black/Red
Second Ignition Positive Wire Location: Ignition Switch Harness
Accessory Positive Wire (+): Blue/Red
Accessory Positive Wire Location: Ignition Switch Harness
Parking Light Negative Wire (-): Red/Black
Parking Light Negative Wire Location: At Steering Column Harness
Parking Light Positive Wire (+): Green
Parking Light Positive Wire Location: In Drivers Kick Panel
Power Door Lock Negative Wire (-): Blue/White
Power Door Lock Negative Wire Location: At Door Control Relay. The door control relay, is located behind the driver dash speaker.
Power Door Unlock Negative Wire (-): Blue/Yellow
Power Door Unlock Negative Wire Location: At Door Control Relay. The door control relay, is located behind the driver dash speaker.
Door Trigger Negative Wire (-): Black/White Or Black
Door Trigger Negative Wire Location: At 2-Pin Plug, Top Of Fusebox
Domelight Supervision Wire: Use Door Trigger, Requires Relay
Domelight Supervision Wire Location: N/A
Horn Negative Wire (-): Green/Red
Horn Negative Wire Location: At Steering Column Harness
Tachometer Wire Negative Wire (-): Black
Tachometer Wire Negative Wire Location: At Diagnostic Connector. The diagnostic connector, is located on the passenger inner fender near the fuse/relay box.
Brake Light Positive Wire (+): Green/White
Brake Light Positive Wire Location: At Switch Above Brake Pedal
Factory Alarm Disarm Wire (-): N/A
Factory Alarm Disarm Wire Location: N/A
Factory Anti-Theft System: N/A
Factory Anti-Theft System Location: N/A

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My check engine light has come on in my 1994 Toyota Pickup V6. I have had the truck for 15 years and this has never happened. What would be the cause of this?


In most cases, there will be a failed sensor that will trigger this code alert. It could also be a worn connector as well. The best action at this point, is to have a diagnostic scan run on your truck. This will isolate the actual issue and allow for a efficient and targeted repair attempt.

You can have this scan ran at your local autozone for free, or you can take your truck to the nearest local Toyota dealership as well.

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