STEP/SEQUENCE RESULT WHAT TO DO NEXT TM 9-2320-363-20-1 Section 4 TROUBLESHOOTING CHARTS E.  FLASH CODE: 33 J1587 CODE: P102 3 - TURBO BOOST PRESSURE CIRCUIT FAILED HIGH (HIGH VOLTAGE) NOTE - This chart is only to be used if: 1) All basic mechanical checks and physical inspections have been performed with no problem found, and 2) Diagnosis of DDEC-III was started at step Start-1, pg 3-345.41 and you have now been referred here. 33-1 Multiple Code Check Were there any other active No other codes. Go to 33-2. codes besides Code 102/3? Yes, any or all Go to ENG5V-1 (page 3-345.413). of the following codes: 110/3 or 4, 175/3 or 4, 174/3 or 4, 72/3 or 4, 100/3 or 4, 94/3 or 4, 101/3 or 4, 73/3 or 4. Yes - but none Go to 33-2. of the above. 33-2 Sensor Check Turn ignition off. Code 102/4 (and Go to 33-3. Disconnect TBS connector. any codes except Start and run engine at idle. Code 102/3). Read active codes. Code 102/3 (and Go to 33-5. any other codes). 33-3 Return Circuit Check Turn ignition off. Less than or Go to 33-4. Install a jumper wire between pins equal to 5 ohms. A and B of the TBS harness connector. Greater than Return line (ckt#452) is open. Disconnect engine harness 5 ohms or open. Repair open.  Then go to 33-30. connector at the ECM. Read resistance between sockets P1 and Y2 on the engine harness connector. 33-4 Check TBS Connectors Inspect terminals at the TBS Terminals and Replace TBS.  Then go to connectors (both the sensor and connectors are okay. 33-30. harness side) for damage; bent, corroded, and unseated pins or Problem found. Repair terminals/connectors. sockets. Then go to 33-30. Change 3  3-345.269