1997 Chrysler Town & Country 3.3L PCM Replacement Guide
The Powertrain Control Module (PCM) in your 1997 Chrysler Town & Country (3.3L) is the main computer that manages engine timing, fuel delivery, and transmission shifts. Failure of this module often results in no-start conditions, stalling, and internal trouble codes like P0601 or P1696.
Quick Summary
- The PCM controls engine and transmission functions in your 1997 Chrysler Town & Country 3.3L.
- Internal codes like P0601 and P1696 indicate module failure requiring replacement.
- Factory replacement involves 0.6 hours labor plus a 0.5-hour relearn procedure.
- Flagship One provides VIN-programmed PCMs that skip the dealer flash step.
- Prevent PCM damage by maintaining a healthy charging system and clean connections.
If your 1997 Chrysler Town & Country (3.3L) is experiencing intermittent no-start, stalling, or transmission shifting problems, the Powertrain Control Module (PCM) may be at fault. This computer manages engine timing, fuel injection, and transmission control. When it fails, internal diagnostic trouble codes such as P0601 or P1696 often appear. This guide explains what the PCM does, where it is located, common failure symptoms, and the replacement process. You will also learn about factory service bulletin #18-037-05 and how a VIN-programmed replacement can simplify the repair.
What the PCM Does in a 1997 Chrysler Town & Country
The Powertrain Control Module (PCM) in your 1997 Chrysler Town & Country (3.3L) is the main computer that manages engine timing, fuel delivery, transmission shift points, and emissions controls. When this module fails, it can cause a range of drivability problems. If you need a replacement PCM for the 1997 Chrysler Town & Country, it must be properly programmed to match your vehicle’s VIN and options.
Where the PCM Is Located and What Replacement Involves
Replacing the PCM on this vehicle involves a book time of 0.6 hours for removal and installation, plus an additional 0.5 hours for the factory relearn procedure. The PCM is typically mounted in the engine compartment, often near the battery or on the driver-side fender well. Access may require removing the air intake duct or other components. After installation, the vehicle must undergo a relearn process to adapt the idle and shift strategies.
How to Reach the PCM on the 1997 Chrysler Town & Country
- Disconnect both cables from battery, negative cable first.
- Remove 2 screws holding Power Distribution Center (PDC) to bracket distributioncenter.
- Remove heat shield from battery heatshieldbattery.
- Remove nut and clamp holding battery to battery tray clampnut.
- Remove battery from vehicle.
- Rotate PDC toward center of vehicle to remove from rear bracket.
- Pull PDC rearward to remove from front bracket.
- Remove both way connectors.
- Remove 3 screws holding PCM to fender.
Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.
| Operation | Configuration | Book Time |
|---|---|---|
| Powertrain Control Module Relearn | All configurations | 0.5 hr |
| Powertrain Control Module R&R | All configurations | 0.6 hr |
| Engine Control Module Relearn | All configurations | 0.5 hr |
| Engine Control Module R&R | All configurations | 0.6 hr |
Programming Requirements After Replacement
Factory service bulletin #18-037-05 outlines flash programming failure recovery using the DRBIII® scan tool. After replacing the PCM, the dealer procedure requires a full flash and VIN programming to restore proper operation. Flagship One provides a VIN-programmed replacement unit that arrives with the correct calibration already loaded, so you can install it and skip the factory flash steps entirely.
Symptoms of a Failing PCM
Common failure symptoms of the PCM in a 1997 Chrysler Town & Country include intermittent no-start conditions, stalling, erratic shifting, and the check engine light illuminating with internal controller codes. If you see internal control module memory checksum error, it indicates the PCM’s internal memory has failed and the module should be replaced. Other signs include dead scan-tool communication, misfire codes, and poor fuel economy.
Module Trouble Codes on the 1997 Chrysler Town & Country
The following diagnostic trouble codes are stored inside the PCM itself and indicate internal module faults rather than sensor or circuit problems. These codes require PCM replacement or reprogramming to resolve.
| Code | Meaning | Full Guide |
|---|---|---|
| P0600 | Module-internal fault | Full P0600 guide → |
| P0601 | Internal memory checksum error | Full P0601 guide → |
| P1695 | Module-internal fault | — |
| P1696 | Module-internal fault | — |
| P1697 | Module-internal fault | — |
| P1698 | Module-internal fault | — |
Factory Service Bulletins Worth Knowing
Factory service bulletin #18-037-05 (Flash Programming Failure Recovery Using DRBIII®) applies to this vehicle. It provides a recovery procedure when a PCM flash is interrupted or fails, using the DRBIII® scan tool to restore the module to a programmable state. This bulletin is relevant if you are attempting to reprogram the original PCM and encounter a failure during the process.
| Bulletin | Subject | What It Addresses |
|---|---|---|
| 18-037-05 | 18-037-05 Flash Programming Failure Recovery Using DRBIII® | — |
Protecting the PCM in Your 1997 Chrysler Town & Country
- Keep the battery and charging system in good condition; low voltage can damage the PCM.
- Inspect and clean all PCM ground connections and harness connectors annually.
- Avoid jump-starting the vehicle with a running donor car; use a battery pack or follow proper spike-free procedures.
- Address any check engine light or drivability codes promptly to prevent secondary damage.
- Ensure the PCM connector seals are intact and the module is protected from moisture and road splash.
Frequently Asked Questions
Can I install a used PCM from a junkyard in my 1997 Chrysler Town & Country?
A used PCM may work, but it must be from the exact same model year, engine, and emissions calibration. Even then, it will need to be flashed with your vehicle’s VIN and software, which requires a DRBIII® scan tool. A VIN-programmed replacement from Flagship One avoids these compatibility issues.
What does the 0.5-hour relearn procedure involve after replacing the PCM?
The factory relearn procedure allows the PCM to adapt to the engine’s idle air control and transmission shift adapts. It typically involves driving the vehicle through a specific cycle of idle, part-throttle, and wide-open-throttle conditions. The 0.5-hour book time covers this process.
My 1997 Town & Country has code P1696. Does that mean the PCM is bad?
Code P1696 indicates a PCM failure (EEPROM write error). This is an internal module fault, not a sensor or wiring issue. The PCM must be replaced and properly programmed. A VIN-programmed unit from Flagship One will eliminate the need for dealer programming.
If your 1997 Chrysler Town & Country (3.3L) is showing internal PCM codes or drivability issues, you have two options: repair the original module or replace it with a refurbished unit. Given the complexity of flash programming and the availability of VIN-programmed replacements, many owners choose a direct swap to get back on the road quickly without dealer visits.
Flagship One stocks a refurbished, VIN-programmed PCM for the 1997 Chrysler Town & Country with a lifetime warranty, free shipping and no core charge. The full Chrysler Town & Country module lineup covers other engine configurations as well.
Final Thoughts
The PCM in your 1997 Chrysler Town & Country (3.3L) is a critical component that controls engine and transmission operation. When internal faults like P0601 or P1696 appear, replacement with a properly programmed unit is the reliable solution. Flagship One offers VIN-programmed PCMs that arrive ready to install, saving you the factory flash and relearn steps.