P24C3 Exhaust Gas Temperature Measurement System - Multiple Sensor Correlation Bank 2

P24C3 is the bank 2 counterpart of P24C2 and only makes sense on engines whose two cylinder banks feed separate exhaust strings, each with its own set of temperature probes. The controller has found that the probes of the second string disagree among themselves beyond what the operating state allows. No manufacturer documents P24C3 publicly. Ford's 2023 diesel summary shows how such a group check works for bank 1: a key-on comparison after a long soak and a model comparison while driving, each probe weighed against the others. CARB requires that temperature sensors used for aftertreatment control be checked for rationality. The individual bank 2 probes have their own codes P2082, P2086, P2467 and P2474. A test with all probes cold after an overnight stop usually shows the outlier.

Likely causes

Symptoms

• Malfunction indicator lamp on
• Particulate filter regeneration may be inhibited

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: fordservicecontent.com, law.cornell.edu.