P0541 on RAM
Intake Air Heater "A" Circuit Low
P0541 on RAM vehicles indicates intake air heater "a" circuit low. Au7o has documented this code across 1 RAM model — most commonly on 2500. The PCM detects voltage on the intake air heater 'A' control circuit that is lower than expected (short to ground or open). An electrical fault in the heater control circuit. Typical repair costs on RAM range from $300 to $18,000, depending on the specific model and root cause.
Common Causes of P0541
- •Short to ground in heater control wiring
- •Open circuit in the heater circuit
- •Failed intake air heater relay
- •Failed heater element
- •Corroded/loose connector
P0541 on RAM by Model
RAM 2500(1 issue)
- 6.7L Cummins Grid Heater Bolt Failure (Bolt Drops Into Cylinder #6)2007-2024
The intake grid (air) heater warms incoming air for cold starts and carries up to ~200 amps through a small threaded stud/bolt secured by a 10mm nut on the intake plenum. Over years of high-current heat cycling the bolt/nut connection deteriorates, arcs, and can break loose. Because it sits directly above the intake runner, gravity pulls the heavy steel stud straight into cylinder #6, destroying the piston, valves, and cylinder head, often the entire engine. Banks Power has documented 200+ failures, some at as little as 40,000 miles. Stellantis has NOT recalled the grid heater assembly itself (a separate 2021-2022 relay recall Y08/Y76 addressed sticking relays, not the bolt).
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View P0541 across all makes →Frequently Asked Questions
What does P0541 mean on RAM?▼
P0541 stands for "Intake Air Heater "A" Circuit Low." The PCM detects voltage on the intake air heater 'A' control circuit that is lower than expected (short to ground or open). An electrical fault in the heater control circuit. On RAM specifically, this code is documented across 1 model.
What causes P0541 on RAM vehicles?▼
Common causes on RAM: Short to ground in heater control wiring, Open circuit in the heater circuit, Failed intake air heater relay, Failed heater element, Corroded/loose connector. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0541 on a RAM?▼
Repair costs on RAM range from $300 to $18,000, depending on the specific model and root cause.
Which RAM models have P0541 documented?▼
Au7o has documented P0541 on 1 RAM model: 2500.