What this code means
P0369 can indicate an intermittent interruption in the CMP sensor B signal.
P0369 concerns an intermittent interruption in the camshaft-position signal identified as B. The PCM evaluates the pulses described by the code. An intermittent condition is one that may appear during one operating state and not another, so the confirmation uses the particular conditions given in the procedure.
The inspection path includes the CMP sensor B, its connections, ground connections and the CMP pulse plate B. These are different inspection areas. The code establishes which signal is being investigated; the following checks narrow the fault area through the stated observations.
What the vehicle may do
- Abnormal CMP sensor B pulses can trigger stored P0369.
Possible fault areas
- Possible fault areas include CMP sensor B and its connections at the PCM.
- Engine and body ground connections may also be involved.
- CMP pulse plate B may be loose or damaged.
The confirmation begins with the specified idle check. The recorded-condition drive follows where directed, using the snapshot parameters listed in the procedure. Keep the instruction about completing confirmation once the failure has been duplicated attached to that sequence.
The physical inspections then address sensor/PCM connections, ground connections and the CMP pulse plate B. Each has a stated normal condition. The final CMP sensor B conclusion depends on the other inspection items being normal.
Diagnostic path
Understand the stored condition
P0369 means Camshaft Position (CMP) Sensor B Circuit Intermittent Interruption. That means the CMP sensor B signal is interrupted from time to time. When the sensor produces abnormal pulsing signals, the PCM recognizes a fault and stores the code.
Check for the fault at idle
If the failure is duplicated, the confirmation procedure is complete. Start the engine and let it idle for 10 seconds or more. Then monitor the HDS [OBD STATUS (PGM-FI)] for DTC P0369.
Check under the recorded driving conditions
If the failure has not been duplicated, test-drive the vehicle for several minutes. Stay within the same range of the recorded on-board snapshot parameters: Engine Speed and Vehicle Speed. HDS Function: PGM-FI > Data List lists those two signals. Then monitor the HDS [OBD STATUS (PGM-FI)] for DTC P0369. If the failure is duplicated, the confirmation procedure is complete.
The recorded Engine Speed and Vehicle Speed provide the reference for the driving condition used here. Matching that range keeps the status observation associated with the condition the procedure asks to reproduce. It also keeps this stage distinct from the earlier idle observation.
Check the sensor and PCM connections
Check the connectors at CMP sensor B and the PCM. Make sure the connections are secure, and check for loose terminals. The connections and terminals should be in good condition. If their condition is abnormal, there is a problem with the connections or terminals.
Check the ground connections
Next, check the connectors at Engine ground and Body ground. Make sure the connections are secure, and check for loose terminals. The connections and terminals should be in good condition. If their condition is abnormal, there is a problem with the connections or terminals.
Check CMP pulse plate B
The cylinder head cover must be removed for this check. Visually inspect CMP pulse plate B for looseness or damage. There should be no looseness or damage. If its condition is abnormal, there is a problem with CMP pulse plate B.
This is the visual-condition check for the CMP pulse plate B. Carry out the stated access preparation before applying the looseness-or-damage criterion. The finding belongs to the pulse plate inspection, while the sensor conclusion later in the procedure has the additional condition that the other checks are normal.
When the other checks are normal
If all the other inspection items show normal conditions, CMP sensor B is the remaining item and is determined to be the cause.
Final check
CMP sensor B may be the cause when all the other inspection items show normal conditions.
The result should identify what was observed during confirmation and which connection, ground or CMP pulse plate B inspection was normal or abnormal. Retain those findings together. The final conclusion about the CMP sensor B is supported by the stated combination of results, not by the intermittent-code description alone.
