2025 Jeep Compass P2601-00 MIL Illumination TSB

Important Market Information

This Technical Service Bulletin (TSB) 08-373-25 is specifically noted as applying to vehicles sold in Enlarged Europe and Middle East & Africa markets. It is not applicable to vehicles built for the US market.

Symptoms

Owners of affected 2025 Jeep Compass vehicles may observe a "Malfunction Indicator Lamp (MIL) illumination" on the dashboard. This warning light is typically accompanied by a specific Diagnostic Trouble Code (DTC).

Fault Codes / DTCs

The primary Diagnostic Trouble Code associated with this issue is:

Code	Description
P2601-00	Electric Coolant Pump Control Circuit Performance/Stuck Off

This DTC, P2601-00, points to a performance or stuck-off condition within the electric coolant pump control circuit.

Diagnosis / Trigger Conditions

The root cause for the "Malfunction Indicator Lamp (MIL) illumination" and the presence of DTC P2601-00 is identified as an issue with the Hybrid Control Processor (HCP) software. Technicians will use a Scan Tool, such as wiTECH, with the appropriate Diagnostic Procedures available in DealerCONNECT/Service Library. This allows them to verify all related systems are functioning as designed. If any DTCs or symptom conditions, other than those listed above, are present, technicians are instructed to record these issues on the repair order and address them before proceeding with this bulletin.

Important Repair Notes for Technicians

Several critical notes must be followed during the repair process to ensure a successful software update:

• Battery Voltage: Technicians must install a battery charger to ensure the battery voltage does not drop below 13.2 volts. It is crucial not to allow the charging voltage to climb above 13.5 volts during the flash process, as this could cause issues.
• Interrupted Flash: If the flash process is interrupted or aborted for any reason, the flash procedure must be restarted from the beginning.
• PCM Update: The Powertrain Control Module (PCM) must be updated to the latest available software at the conclusion of this repair procedure. Technicians should refer to all applicable published service bulletins for detailed repair procedures and labor times related to updating the PCM software.

Repair Procedure Summary

To resolve the Jeep Compass P2601-00 issue, the dealer will perform a software update for the Hybrid Control Processor (HCP) as outlined in TSB 08-373-25. The general steps include:

1. Battery Preparation: A battery charger must be connected to maintain the battery voltage between 13.2 and 13.5 volts throughout the flash process. This prevents power interruptions that could corrupt the software update.
2. HCP Reprogramming: The Hybrid Control Processor (HCP) will be reprogrammed with the latest available software using the wiTECH Diagnostic Application. If issues arise when flashing a module, a ticket should be submitted to the Helpdesk.
3. DTC Clearing: After the HCP software update, all Diagnostic Trouble Codes (DTCs) that may have been set in any module due to reprogramming will be cleared. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.
4. PCM Verification: The Powertrain Control Module (PCM) software will also be verified to ensure it is updated to the latest version. Technicians may refer to other applicable service bulletins for detailed PCM update procedures.

This procedure, identified by labor operation number 18-19-86-99, is estimated to take 0.4 hours.

Required Tools or Parts

Technicians will require a wiTECH diagnostic tool or an equivalent system to perform the software update.

Warranty Information

This repair is reimbursable under the provisions of the vehicle's warranty. Dealers must use failure code CC (Customer Concern) with this Technical Service Bulletin. If the customer's concern matches the symptom identified in the TSB, the failure code CC is to be used. When utilizing this failure code, the 3C's (customer's concern, cause, and correction) must be provided for processing Technical Service Bulletin flash/reprogramming conditions.

Owner Action

If you own a 2025 Jeep Compass and experience a "Malfunction Indicator Lamp (MIL) illumination" along with the Jeep Compass P2601-00 Diagnostic Trouble Code, you should contact your authorized Jeep service center. This repair is reimbursable under the provisions of the vehicle's warranty.

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Source: NHTSA ID: 11025630