DTC P0340 - '03-04 Models: CMP Sensor A No Signal, DTC P0341 - '03-04 Models: CMP Sensor A Intermittent Interruption, DTC P0365 - '03-04 Models: CMP Sensor B No Signal, DTC P0366 - '03-04 Models: CMP Sensor B Intermittent Interruption

Reset the PCM (see HOW TO RESET THE PCM ).
Start the engine.
Is DTC P0340, P0341, P0365, or P0366 indicated?
1. YES: Go to step 3.
2. NO: Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the CMP sensor A/B and at the PCM.
Turn the ignition switch OFF.
Disconnect the CMP sensor A/B 4P connector.
Measure resistance between the terminals of the indicated sensor (see table).

Fig 1: Measuring Resistance Between The Terminals Of The Indicated Sensor (1 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Measuring Resistance Between The Terminals Of The Indicated Sensor (2 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 1,850-2,450 k ohms?
1. YES: Go to step 6.
2. NO: Replace the CMP sensor A/B (see CMP (TDC) Sensor Replacement ).
Check for continuity to body ground on both terminals of the indicated sensor individually.

Fig 3: Checking For Continuity To Body Ground On Both Terminals Of The Indicated Sensor Individually
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?
1. YES: Replace the CMP sensor A/B (see CMP (TDC) Sensor Replacement ).
2. NO: Go to step 7.
Reconnect the CMP sensor A/B 4P connector.
Disconnect PCM connector C (31P).
Measure resistance between the terminals of the indicated sensor on the PCM connector.

Fig 4: Measuring Resistance Between The Terminals Of The Indicated Sensor On The PCM Connector (1 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 5: Measuring Resistance Between The Terminals Of The Indicated Sensor On The PCM Connector (2 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 1,850-2,450 ohms?
1. YES: Go to step 10.
2. NO: Repair open in the indicated sensor wires (see table).
Check for continuity between body ground and PCM connector terminals C20 and/or C29 individually.

Fig 6: Checking For Continuity Between Body Ground & PCM Connector Terminals C20 And/Or C29 Individually
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?
1. YES: Repair short in the indicated sensor wires.
2. NO: Substitute a known-good PCM and recheck (see HOW TO SUBSTITUTE THE PCM FOR TESTING PURPOSE ). If the symptom/indication goes away, replace the original PCM.