Connect jumper pins to read trouble coodes

Tiny
BILLMILL5050
  • MEMBER
  • 1991 MAZDA B2600
  • 4 CYL
  • RWD
  • AUTOMATIC
  • 118,000 MILES
How do I connect to read computer trouble codes
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Monday, April 27th, 2015 AT 9:25 AM

8 Replies

Tiny
WRENCHTECH
  • EXPERT
Your code reader won't work on that car.
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Monday, April 27th, 2015 AT 9:50 AM
Tiny
BILLMILL5050
  • MEMBER
One man said I could jumper wire between ground and ten plugs under the hood. But I don't know which two to jump
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Wednesday, April 29th, 2015 AT 5:41 PM
Tiny
WRENCHTECH
  • EXPERT
https://www.2carpros.com/images/external/41990764.jpg.gif

When problems occur in ECU monitored input or output devices, test the system to find the cause. During testing, failures of input and output devices are retrieved from the ECU as malfunction code numbers and displayed on the dash mounted malfunction indicator light (MIL).

NOTE: The ECU constantly checks for input device malfunctions. However, it only checks for output device malfunctions in a 3 second period after the ignition switch is turned "ON" with test connector grounded. If there is more than one malfunction code present, the lowest number code is displayed first, followed by subsequent codes in numerical order. This procedure is only applicable to vehicles with an MIL system that will display codes.

INSPECTION PROCEDURE

Warm up engine to normal operating temperature and turn ignition "OFF."
Ground test connector (Green: 1-pin) with a jumper wire.

NOTE: Test connector is located next to self-diagnostic connector.

Turn ignition switch "ON."
If MIL illuminates, goes off, and stays off, no codes are present.
If MIL illuminates, goes off, and then starts flashing, codes are present.
Start engine and check for additional codes.
If any codes are retrieved, refer to Malfunction Code Charts under DIAGNOSTIC CHARTS. Repair as required.

AFTER-REPAIR PROCEDURE

Erase ECU malfunction code memory by disconnecting the negative battery cable and depressing the brake pedal for at least five seconds. Reconnect battery cable.
Ensure engine is at normal operating temperature. Ground test connector.
Turn ignition switch "ON."
If MIL illuminates, goes off, and stays off, no codes are present.
If MIL illuminates, goes off, and then starts flashing, codes are present.
Start the engine and check for additional codes.
If any codes are retrieved, repair problem and repeat after-repair procedure.
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Wednesday, April 29th, 2015 AT 5:46 PM
Tiny
BILLMILL5050
  • MEMBER
Thanks but how do I jump ground and tens pin? What is tens pin? Do I jump green 1 to ground. The green 6 plug has 3 wires 1-yellow 2-blue and black and pin 5-yellow.1 plug green with red wire and 2pin yellow plug with 2 wires blue and black thanks
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Thursday, April 30th, 2015 AT 2:17 PM
Tiny
BILLMILL5050
  • MEMBER
Thanks
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Thursday, April 30th, 2015 AT 2:22 PM
Tiny
WRENCHTECH
  • EXPERT
The instructions stater there is a connector with a single green wire that you have to jump to ground.
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Thursday, April 30th, 2015 AT 3:07 PM
Tiny
WRENCHTECH
  • EXPERT
Correction. The wire isn't green, the connector is. I see it in your picture.
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Thursday, April 30th, 2015 AT 3:08 PM
Tiny
BILLMILL5050
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THANKS
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Thursday, April 30th, 2015 AT 7:05 PM

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