F: Pass Key Decoder Module Programming Test

F: PASS KEY DECODER MODULE PROGRAMMING TEST

1. Check that connector C228 is connected, clean and tight. With Ignition Switch in OFF, disconnect connector C228. Put the Ignition Switch in RUN and measure the voltage between terminal B (PPL/YEL) and a known good ground.
- If approximately 5 volts are measured, go to step 2.
- If 5 volts are not measured, check the PPL/YEL (1074) wire for an open or short to ground. If OK, replace the PASS Key Decoder Module.
2. Measure the voltage between connector C228 terminals B (PPL/YEL) and A (WHT/BLK).
- If approximately 5 volts are measured, go to Step 3.
- If approximately 5 volts are not measured, check the WHT/BLK (1073) wire for an open. If OK, replace the PASS Key Decoder Module.
3. Turn the Ignition Switch to OFF. Connect the J35628 Interrogator between both halves of connector C228. Insert the customer's Ignition Key into the Ignition Switch. Press the On-Off switch on the Interrogator to the ON Position.
- If the Key Code Reader Window indicates a code from 1 to 15, go to~step 4.
- If the Key Code Reader Window indicates "E"for error, go to step 5.
4. Observe the Key Code Reader Window while rotating the Ignition Key to the Start position.
- If the Key Code remains constant in all switch positions, check the GRY (923) wire for a short to ground. If OK, replace the PASS Key Decoder Module.
- If the code is correct in only some positions, go to step 6.
5. Check the customer's ignition key by inserting it in the Key Code Reader on the J35628 Interrogator.
- If the Interrogator indicates "E "replace the key with a spare or follow the procedure under Key Replacement.
- If the Interrogator indicates the electrical code (1 to 15) replace the Lock Cylinder.
6. Obtain a spare key or make a replacement key (see Duplication of Keys). Read the code again as in the previous step.
- If the code is correct in all positions, the original key is defective. Replace the original key.
- If the code is incorrect in some positions, the Ignition Switch Lock Cylinder is defective. Replace the Lock Cylinder.