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DIAGNOSTIC

CHECKLIST

These are the basic guidelines in diagnosing a suspected faulty Dastek Power X-Connect product (Plug & Play)

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Vehichle cranks but doesn’t start

  1. Use diagnostic tool and look for any fault codes present in ecu, record any codes as they will be usefull later to determine the problem.
  2. Look for any visible problem with all connections to and from ecu and plug & play harness.
  3. Inspect the Unichip and Driver module connecters and terminals for pulled wires, opened up terminals and water marks.
  4. Look for bent pins on vehicle ecu and plug and play side. It does sometimes happen when not alligned before securing the latches.
  5. With the plug & play harness still connected, using bridge plugs bridge out Unichip and Driver Modules if any.
  6. If vehicle still fails to start the plug & play harness most certainly has a fault if above steps were taken care of.
  7. If vehicle starts and runs normal you certainly don’t have a plug & play harness issue.

Checking for a faulty Unichip or Driver module after plug & play harness test okay

  1. With plug & play harness still connected, using a bridge plug first ONLY bridge out the DRIVER module and try starting the vehicle.
  2. If vehicle starts and runs normal you could have a bad Driver module.
  3. If vehicle fails to start with Driver module bridged you could have a faulty Unichip.
  4. Try using another Unichip and/or Driver module and download start up maps from Unichip Dealer Portal for testing.
  5. Contact Dastek Power to assist in re-loading the relevant maps back to Unichip once above steps have been taken care of.

Intermittend faults/Drivability issues/Engine light coming on

  1. Use diagnostic tool and look for any fault codes present in ecu, record any codes as they will be usefull later to determine the problem.
  2. With plug & play harness still connected select mapset 2 (Standard Mode) and drive the vehicle to see if problem persists.
  3. If vehicle is fine in mapset 2 (Standard Mode) you have a mapping issue. (Contact Dastek Power)
  4. If the problem persists in mapset 2 (Standard Mode) there could be a problem with the vehicle and not the plug & play system fitted.

On Diesel vehicles ALWAYS start with a diagnostic tool to read injector trims and look for any DTC’s stored in ecu before fitting

Unichip and/or plug & play system. DO NOT FIT ANY PRODUCT TO VEHICLE WITH BAD INJECTORS.

info@dastekpower.com