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DTC B1327: Testing

  1. Did you perform the DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL .
  2. Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the BATTERY VOLTAGE parameter in the AFFECTED MODULE DATA LIST. Or with a DMM, measure the battery voltage at the appropriate circuit of the module. Does the voltage measure greater than the specified value of 9.4V? If so, go to step  6. If not, go to next step.
  3. Turn OFF the ignition. Disconnect the harness connector of the module setting the DTC B1327. Measure the voltage between the battery positive voltage circuit of the module setting the DTC B1327 and the ground circuit of the module setting the DTC B1327. Does the voltage measure greater than the specified value of 9.4V? If so, go to step  6. If not, go to next step.
  4. Test the batter positive voltage circuit of the module setting the code for a high resistance or an open. Did you find and correct the condition? If so, go to step  8. If not, go to next step.
  5. Test the ground sense circuit of the module setting the code for a high resistance or an open. Did you find and correct the condition? If so, go to step  8. If not, go to next step.
  6. Inspect for poor connections at the harness connector of the module setting the DTC. Did you find and correct the condition? If so, go to step  8. If not, go to next step.
  7. Replace the module setting the DTC. After replacement is complete, go to next step.
  8. Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. See CONDITIONS FOR RUNNING THE DTC . Does the DTC reset? If so, go to step  2. If not, then system is okay.
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