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Home/DTC Codes/Fiat/Uno/2010-2021 1.0L I4 Flex Fire Evo/P0601
P0601

Internal Control Module Memory Check Sum Error

2010-2021 Fiat Uno 1.0L I4 Flex Fire Evo

High SeverityPowertrainGeneric (SAE)

Description

The PCM has detected a memory checksum error during self-test.

Symptoms

  • Check Engine Light
  • Erratic engine behavior
  • Possible no-start
  • Multiple system faults

Common Causes

  • PCM internal failure
  • PCM programming corruption
  • Voltage spike damage
  • Water intrusion into PCM

Diagnostic Steps

  1. Attempt PCM reprogramming/reflash
  2. Check for water damage to PCM
  3. Test PCM power and ground circuits
  4. Check for TSBs regarding PCM update

Repair Notes

Reprogram PCM first. If error persists, replace PCM.

Related Codes

P0600Serial Communication LinkP0602Control Module Programming ErrorP0606PCM Processor Fault

Other Powertrain Codes

P0601 on Other Vehicles

Fiat 124 Spider

2017-2020 1.4L I4 Turbo

Fiat 126p Maluch

1973-2000 0.65L I2 Air-Cooled

Fiat 126p Maluch

1987-2000 0.7L I2 Air-Cooled

Fiat 500

2012-2019 1.4L I4

Fiat 500 Abarth

2012-2019 1.4L I4 Turbo

Fiat 500 BR

2011-2020 1.4L I4 Flex Fire Evo

Fiat 500 PL

2007-2025 1.0L I3 Hybrid FireFly 70

Fiat 500 PL

2007-2025 1.2L I4 Fire 69

Common Questions

What does code P0601 mean on a 2010-2021 Fiat Uno?

P0601 stands for "Internal Control Module Memory Check Sum Error". The PCM has detected a memory checksum error during self-test.

What are the symptoms of P0601 on a Fiat Uno?

Common symptoms of P0601 include: Check Engine Light, Erratic engine behavior, Possible no-start, Multiple system faults.

What causes P0601 on a 2010-2021 Fiat Uno?

Common causes of P0601 include: PCM internal failure, PCM programming corruption, Voltage spike damage, Water intrusion into PCM.

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