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Home >> Honda >> 2000 >> CR-V SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Controls - Self-Diagnostics - 4.3L) >> Diagnostic Trouble Code Identification >> DTC P0338: Crankshaft Position Sensor Circuit High Frequency >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2000 Isuzu Hombre. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform On-Board Diagnostic II (OBD-II) System Check. See SELF-DIAGNOSTICS - INTRODUCTION article. Retrieve and record FREEZE FRAME and/or FAIL RECORDS data for each DTC set. Go to next step.
  2. If engine starts, go to step  4. If engine does not start, go to next step.
  3. Using scan tool, clear DTCs. Crank engine for 10 seconds and read DTCs. If DTC P0338 resets, go to next step. If DTC does not reset, go to ENGINE CRANKS BUT WILL NOT START in BASIC DIAGNOSTIC PROCEDURES article.
  4. Start engine. Using scan tool, monitor engine speed (RPM). If RPM fluctuates up to twice desired RPM, go to step  14. If RPM does not fluctuate, go to next step.
  5. Turn engine off. Turn ignition on, with engine off. Disconnect CKP sensor harness connector. Connect a test light between engine ground and ignition feed circuit (Pink wire) at CKP sensor harness connector. If test light comes on, go to next step. If test light does not come on, go to step  8.
  6. Using a test light, connect CKP sensor 3x signal circuit (Yellow wire) and CKP sensor ground circuit (Purple wire) at CKP harness connector. If test light comes on, go to next step. If test light does not come on, go to step  12.
    NOTE: CKP sensor ground circuit may also be referred to as CKP sensor signal low circuit or reference low circuit. The CKP sensor 3x signal circuit may also be referred to as CKP sensor signal high circuit or reference high circuit.
  7. Turn ignition off. Install Gray jumpers from Connector Tester Kit (J35616-A) between CKP sensor and CKP sensor harness connector. Start engine. Using a DVOM, check voltage on CKP sensor 3x signal circuit (Yellow wire) at harness connector. If voltage is 2-3 volts, go to step  16. If voltage is not as specified, go to step  9.
  8. Turn ignition off. Disconnect VCM Blue harness connector. Using a test light connected to battery voltage, probe CKP sensor 3x signal circuit (Yellow wire) at CKP sensor. If test light does not come on, go to step  15. If test light comes on, go to step  11.
  9. Check for open in CKP sensor 3x signal circuit (Yellow wire). If open is found, go to step  17. If circuit is okay, go to next step.
  10. Check for short to ground in CKP sensor 3x signal circuit (Yellow wire). If short is found, go to step  17. If circuit is okay, go to step  13.
  11. Repair short to ground in CKP sensor 3x signal circuit (Yellow wire). After repairs, go to step  19.
  12. Repair open CKP sensor ground circuit (Purple wire). After repairs, go to step  19.
  13. Check for faulty connection at CKP sensor. If faulty connection is found, go to step  17. If connection is okay, go to next step.
  14. Replace CKP sensor. Perform CKP system variation learn procedure. See PROGRAMMING . After replacing sensor, go to step  19.
  15. Check for open in CKP sensor harness connector ignition feed circuit (Pink wire). If open is found, go to step  17. If circuit is okay, go to next step.
  16. Check for faulty connection at VCM. If faulty connection is found, go to next step. If connection is okay, go to step  18.
  17. Repair circuit(s) as necessary. After repairs, go to step  19.
  18. Replace VCM. Program replacement VCM. See PROGRAMMING . After replacing VCM, go to next step.
  19. Using scan tool, select DTC, CLEAR INFO function. Start engine and allow it to reach operating temperature. Using scan tool, select DTC, SPECIFIC function and enter DTC P0338. Operate vehicle within conditions required to set DTC. If scan tool displays RAN AND PASSED, go to next step. If scan tool does not display RAN AND PASSED, return to step  2.
  20. Using scan tool, select Read and Record INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, diagnose affected DTCs. If no DTCs are displayed, system is okay.
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