P0343-886 - Camshaft Position Sensor "A" Circuit High Input
L110F HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0343-886: Camshaft Position Sensor "A" Circuit High Input
DESCRIPTION
Refer to the description for DTC P0338-885 P0338.
WIRING DIAGRAM
Refer to the wiring diagram for DTC P0338-885 P0338.
INSPECTION PROCEDURE
CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
HINT
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
PROCEDURE
1. CHECK DTC OUTPUT (HV)
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Check if DTCs are output.
Result:
B -- CHECK HYBRID VEHICLE CONTROL ECU
A -- Continue to next step.
2. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)
(a) Check the connections of the hybrid vehicle control ECU connectors.
OK:
The connectors are connected securely and there are no contact problems.
NG -- CONNECT SECURELY
OK -- Continue to next step.
3. CHECK CONNECTOR CONNECTION CONDITION (ECM CONNECTOR)
(a) Check the connections of the ECM connectors.
OK:
The connectors are connected securely and there are no contact problems.
NG -- CONNECT SECURELY
OK -- Continue to next step.
4. CHECK HYBRID VEHICLE CONTROL ECU (CHECK WAVEFORM)
(a) Connect an oscilloscope to the hybrid vehicle control ECU terminals specified in the table below, and measure the waveform.
Result:
C -- CHECK HYBRID VEHICLE CONTROL ECU
B -- CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU)
A -- Continue to next step.
5. CHECK FOR INTERMITTENT PROBLEMS
(a) Check for intermittent problems Check For Intermittent Problems.
NG -- REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
OK -- REPLACE HYBRID VEHICLE CONTROL ECU Components
6. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU)
(a) Turn the power switch on (IG).
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE ECM Components
7. CHECK HYBRID VEHICLE CONTROL ECU
(a) Turn the power switch off.
(b) Disconnect connector A75 from the hybrid vehicle control ECU.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE HYBRID VEHICLE CONTROL ECU Components
OK -- Continue to next step.
8. CHECK INVERTER WITH CONVERTER ASSEMBLY (MG ECU)
CAUTION:
Be sure to wear insulated gloves.
(a) Turn the power switch off.
(b) Remove the service plug grip Hybrid Control System.
(c) Disconnect the low voltage connector from the inverter with converter assembly.
(d) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE INVERTER WITH CONVERTER ASSEMBLY Installation
OK -- Continue to next step.
9. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - ECM)
(a) Disconnect connector A14 from the ECM.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance (Check for open):
Standard resistance (Check for short):
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
10. CHECK ECM
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE ECM Components
OK -- REPLACE HYBRID VEHICLE CONTROL ECU Components