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DTC Troubleshooting

TEST PROCEDURE - DATA CHECK OF INTERNAL & EXTENDED RAM FAILED

Step Action Value(s) Yes No
1 Perform an On-Board Diagnostic (OBD II) System Check.
Is the check completed?		 - Go to Step 2 Go to ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .
2
  1. Install the scan tool.
  2. Turn the ignition ON, with the engine OFF.

Does the scan tool display P1604?		 - Go to Step 3 Go to Diagnostic Aids .
3
  1. Turn the ignition OFF.
  2. Replace the TCM.

Is the action complete?		 - Go to Step 4 -
4
  1. Using the scan tool, clear the DTC.
  2. Road test the vehicle within the conditions for setting this DTC as specified in the text.

Does the scan tool indicate that this diagnostic has run and passed?		 - Go to Step 5 Go to Step 2
5 Check if any DTC(s) are set.
Are any DTC(s) displayed that have not been diagnosed?		 - Go to applicable DTC table. System OK
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