How to Check P0340 CMP of Hyundai Sonata EF

How to Check P0340 CMP of Hyundai Sonata EF

How to Check P0340 CMP of Hyundai Sonata EF

Study Guide and General Description

2002  2.0 DOHC Engine  P0340 Camshaft Position Sensor Circuit Malfunction

Study Guide Component Location Study Guide Description 1. General Description Study Guide The Camshaft Position Sensor (CMPS) is a sensor that detects the compression TDC of the NO. 1 cylinder. The CMPS consists of a hall type sensor and a target on the end of the intake camshaft. When the target triggers the sensor, the sensor voltage is 5V. If not, the sensor voltage is 0V. These CMPS signal is sent to the ECM and the ECM uses the CMPS signal for synchronizing the firing of sequential fuel injectors.

2002   2.0 DOHC  Engine  Unleaded GEN(Siemens)  P0340 Camshaft Position Sensor Circuit Malfunction

Study Guide Terminal and Connector Inspection 1. Study Guide Many malfunctions in the electrical system are caused by poor harness(s) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage. 2. Study Guide Check the following conditions: (1) Study Check for damaged harness and terminals: contact resistance, oxidation, bent or broken terminals. (2) Study Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection Use a suitable male pin to ensure that contact in sockets is good. The pin should remain in position when pulled gently. 3. Study Has a problem been found? YES 1) Study Repair as necessary and go to "Verification of Vehicle Repair" procedure NO 1) Study Go to "Power Circuit Inspection" procedure. Power Supply Circuit Inspection Check Power to CMPS 1. Study IG KEY : OFF , Engine : OFF 2. Study Disconnect CMPS connectorC05. 3. Study IG KEY : ON , Engine : OFF 4. Study Measure voltage between terminal 3 of the CMPS harness connectorC05 and chassis ground. A. [Specification] Approx.B+ 5. Study Guide Is the voltage near the specified value? YES 1) Study Guide Go to "Ground Circuit Inspection" procedure. NO 1) Study Guide Repair open or short to ground in harness, Go to "Verification of Vehicle Repair" procedure. Study Guide Ground Circuit inspection Check for Open in Harness 1. Study Guide IG KEY : OFF , Engine : OFF 2. Study Guide Disconnect CMPS connectorC05 and ECM connector. 3. Study Guide Measure resistance between terminal 1 of the CMPS harness connectorC05 and chassis ground. A. [Specification] Approx.0Ω 4. Study Guide Is the resistance near the specified value? YES 1) Study Guide Go to "Signal Circuit Inspection" procedure. NO 1) Study Guide Repair open in harness, Go to "Verification of Vehicle Repair" procedure. Study Guide Signal Circuit Inspection Check for Open in Harness 1. Study Guide IG KEY : OFF , Engine : OFF 2. Study Guide Disconnect CMPS connectorC05 and ECM connector. 3. Study Guide Measure resistance between terminal 2 of the CMPS harness Study Guide connectorC05 and 16 of the ECM harness connectorC44-2. A. [Specification] Approx.0Ω 4. Study Guide Is the resistance near the specified value? YES 1) Study Guide Go to "Check for Short to Ground in Harness" NO 1) Study Guide Repair open in harness, Go to "Verification of Vehicle Repair" procedure. Check for Short to Ground in Harness 1. Study Guide IG KEY : OFF , Engine : OFF 2. Study Guide Disconnect CMPS connectorC05 3. Study Guide Measure resistance between terminal 2 of the CMPS harness connectorC05 and chassis ground. A. [Specification] infinite(∞Ω) 4. Study Guide Does the resistance indicate open? YES 1) Study Guide Go to "Check for Short to Battery in Harness" NO 1) Study Guide Repair short to chassis ground in harness, Go to "Verification of Vehicle Repair" procedure. Check for Short to Battery in Harness 1. Study Guide IG KEY : OFF , Engine : OFF 2. Study Guide Disconnect CMPS connectorC05. 3. Study Guide IG KEY : ON , Engine : OFF 4. Study Guide Measure voltage between terminal 2 of the CMPS harness connectorC05 and chassis ground. A. [Specification] Approx.0V 5. Study Guide Is the voltage near the specified value? YES 1) Study Guide Go to "Component Inspection" procedure. NO 1) Study Guide Repair short to battery in harness, Go to "Verification of Vehicle Repair" procedure. more info Study Guide and Auto Repair and Study Guide and Auto Repair