Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P1604 Dodge - Engine control module (ECM) - RAM read/ write error

Manufacturer-specific interpretation for Dodge. All interpretations of P1604

P · PowertrainSoftwareOBD2

What P1604 means

P1604
Engine control module (ECM) - RAM read/ write error Dodge · software Data confidence 62%

The control module registered the fault condition described as "Engine control module (ECM) - RAM read/ write error". This is the manufacturer-specific definition used by Dodge.

Possible causes

ECM

Related and nearby codes

How to read P1604

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

604

Specific fault index within the subsystem.

Frequently asked questions about P1604

What does P1604 mean?

Engine control module (ECM) - RAM read/ write error. The control module registered the fault condition described as "Engine control module (ECM) - RAM read/ write error". This is the manufacturer-specific definition used by Dodge.

Is P1604 generic or manufacturer-specific?

P1604 is a manufacturer-specific code. In this database it is documented for: Dodge. The same number can mean something different on other brands.

Can TuningBot remove P1604 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Dodge engines See the results →

← Search the full DTC database