Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Functions (B4204T2 CVVT; 2000): Overview: Other
Every diagnostic trouble code (DTC) has a counter. The counter records the number of fault-free cycles since the diagnostic trouble code (DTC) was stored (intermittent fault). A cycle is defined as the first time the engine speed exceeds 600 RPM in the same interval in which the ignition is switched on (the engine starts) and then switched off. If diagnostic trouble code (DTC) DSA-221 Load signal is stored permanently, the cycle is defined as the first time the average wheel speed exceeds 50 km/h in the same interval in which the ignition is switched on (the engine starts) and then switched off. When a counter is at 0, the control module interprets the fault as permanent. If the counter value is greater than 0, the control module interprets it as an intermittent fault. If the fault recurs, the counter is reset to zero. When the counter reaches 254 (i e. 254 fault-free cycles), the counter is no longer updated.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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