What does GMC P1614 mean?

GMC code P1614: Loss Of RIM Serial Data. It relates to the powertrain on GMC vehicles.

Can P1614 be turned off in the ECU?

DTC removal is possible for off-road/motorsport use after the underlying fault or hardware change (e.g. DPF/EGR removal). Safety-critical codes should be fixed, not suppressed.

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GMC • powertrain

GMC P1614

Loss Of RIM Serial Data

What P1614 means on a GMC

On GMC vehicles, P1614 is logged when the ECU detects a fault in the powertrain: “Loss Of RIM Serial Data”. P1614 is a manufacturer-specific GMC code (the "1" after the letter marks an OEM-defined code), so its meaning applies to GMC and may differ on other makes.

Common causes & symptoms

Typical triggers for a powertrain code like P1614 include faulty or ageing sensors, wiring/connector faults, a clogged or removed component, or a value drifting outside the ECU's expected window. Symptoms range from a check-engine light only, to limp mode, rough running, higher consumption or failed emissions tests.

P1614 and ECU tuning

When a GMC has had hardware changed for off-road/motorsport use (for example a removed DPF or EGR), the related monitor must be disabled in the ECU map or the code re-appears. Softechpro Solutions performs DPF/EGR/AdBlue/DTC off and recalculates the checksum, so codes like P1614 stay cleared after the flash. Genuine faults should always be repaired, not just hidden.

Related GMC codes

P1610 P1611 P1612 P1613 P1615 P1617 P1619 P1620

Need to clear P1614 after a delete?

Softechpro Solutions does DPF/EGR/AdBlue/DTC off + checksum for 260+ ECU families — from €98.99/mo.

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