Details On DTCs

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION

Electric variable valve timing control system:

P0011:00: Over-advanced
P0012:00: Over-retarded

DETECTION CONDITION

Determination conditions

P0011:00: For the advance amount from the maximum intake valve retard position, a condition in which the actual advance amount is larger than the target value continues for a specified period of time.

P0012:00: For the advance amount from the maximum intake valve retard position, a condition in which the actual advance amount is smaller than the target value continues for a specified period of time

Preconditions

Battery voltage: above 11 V⁽¹⁾
Engine speed: 5, 000 rpm or less⁽¹⁾
Engine coolant temperature: 20 °C {68 °F} or more ⁽¹⁾
The following DTCs are not detected:
- P0010:00, P0335:00, P0340:00

Malfunction determination period

10 s period

Drive cycle

Self test type

CMDTC self test

Sensor used

CKP sensor
Intake CMP sensor

FAIL-SAFE FUNCTION

Not applicable

VEHICLE STATUS WHEN DTCs ARE OUTPUT

Illuminates check engine light.

POSSIBLE CAUSE

Electric variable valve timing motor/driver connectors or terminals malfunction
Short to ground or open circuit in electric variable valve timing relay power supply circuit
- Short to ground in wiring harness between battery positive terminal and electric variable valve timing relay terminal C
- MAIN 200 A fuse and/or EVVT 20 A fuse malfunction
  - Open circuit in wiring harness between battery positive terminal and electric variable valve timing relay terminal C
Short to ground in wiring harness between the following terminals:
- Electric variable valve timing relay terminal D-Electric variable valve timing motor/driver terminal 1E
  - Electric variable valve timing relay terminal D-Electric variable valve timing motor/driver terminal 2B
Open circuit in wiring harness between the following terminals:
- Electric variable valve timing relay terminal D-Electric variable valve timing motor/driver terminal 1E
  - Electric variable valve timing relay terminal D-Electric variable valve timing motor/driver terminal 2B
PCM connector or terminals malfunction
Electric variable valve timing relay malfunction
Electric variable valve timing motor malfunction
Electric variable valve timing actuator malfunction
- Electric variable valve timing actuator is stuck in advanced position
  - Electric variable valve timing actuator is stuck in retarded position
Timing chain malfunction
- Poor assembly of timing chain
  - Looseness or jumping
Mis-detection of intake CMP sensor
Mis-detection of CKP sensor
PCM malfunction

⁽¹⁾	Value can be verified by displaying PIDs using M-MDS