P052D: Cold Start A Camshaft Position Timing Over-Retarded Bank 2
Standardized SAE J2012 code · P05xx — Vehicle speed, idle control and auxiliary inputs
What does P052D mean?
Some engines shift the intake (A) camshaft right after a cold start so that more exhaust heat reaches the catalyst; CARB requires each commanded element of this cold-start strategy to be monitored under its own codes. Documented only by Ford (from 2008): during the first 60 s it checks the cam position for 5 s and sets a code above 11° deviation, plus a stuck-pin test (10° commanded, under 2° movement) and an averaged deviation index. Warning lamp after two trips; afterwards the normal cam codes take over. P052D means bank 2 of a V engine was too far retarded. Outside cold start, P0022 applies.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light on
- Usually no noticeable driving symptoms
- Possibly rattle or rough idle on cold start
- Higher cold-start emissions
Common causes
- High Cam phaser sticking or lock pin not releasing (bank 2)
- High Low oil level, wrong viscosity or sludged oil
- Medium Oil control valve sticking or screen clogged
- Low Stretched timing chain
Likelihood is a general estimate across vehicles; your make and model may differ.
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Describe your P052D problemRelated codes
- P0020 "A" Camshaft Position Actuator Circuit (Bank 2)
- P0022 "A" Camshaft Position - Timing Over-Retarded (Bank 2)
- P052B Cold Start A Camshaft Position Timing Over-Retarded Bank 1
- P052C Cold Start A Camshaft Position Timing Over-Advanced Bank 2
- P054D Cold Start B Camshaft Position Timing Over-Retarded Bank 2