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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0335: Crankshaft Position (CKP) Sensor "A" Circuit Malfunction Or DTC P0339: Crankshaft Position Sensor "A" Circuit Intermittent >> Diagnosis & Repair

Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect CKP sensor connector. Using ohmmeter, measure resistance between CKP sensor terminals. Resistance should be 1630-2740 ohms with engine temperature at 14-122°F (-10-50°C) or 2065-3225 ohms with engine temperature at 122-212°F (50-100°C). If using oscilloscope, during cranking or idling, check the waveform between terminals G2 and NE-, and NE and NE- of the ECM connector. See Fig 1. If waveforms are correct or resistance is as specified, go to next step. If waveforms are not correct or resistance is not as specified, replace CKP sensor.
    Fig 1: Checking Crankshaft Position Sensor Waveforms
    G00165133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Check for short or open circuit in wiring harness between ECM E5 connector and CKP sensor. See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Repair wiring as necessary. If wiring harness is okay, go to next step.
  3. Check CKP sensor for proper installation. Also inspect signal plate. Repair or replace as necessary. If CKP sensor and signal plate are okay, replace ECM and retest.
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