P1694 Chrysler Code - No Messages Received From The Powertrain Control Module
Quick Answer
The P1694 code for Chrysler vehicles indicates that the Powertrain Control Module (PCM) has not received any messages from other control modules in the vehicle. Common causes include Faulty wiring or connectors, Defective control modules, Software glitches in the PCM. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1694 Chrysler indicates No Messages Received From The Powertrain Control Module.
- Common causes
- Common causes include Faulty wiring or connectors, Defective control modules, Software glitches in the PCM.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1694 Chrysler Description
The P1694 code for Chrysler vehicles indicates that the Powertrain Control Module (PCM) has not received any messages from other control modules in the vehicle. The PCM is a crucial component that controls various functions in the engine, transmission, and other systems. When the PCM does not receive messages from other modules, it can lead to a lack of communication between different systems, potentially causing performance issues and safety concerns.
Common Causes of P1694 Chrysler
- Faulty wiring or connectors
- Defective control modules
- Software glitches in the PCM
- Electrical issues such as a dead battery or alternator problems
- Water intrusion or corrosion in the control module connectors
Symptoms of P1694 Chrysler
- Check Engine Light illuminated
- Erratic engine operation
- Transmission shifting problems
- Rough idling or stalling
- Reduced fuel efficiency
How to Fix P1694 Chrysler
- Begin by checking the wiring and connectors for any visible damage or corrosion. Repair or replace any damaged components.
- Use a diagnostic scanner to check for any stored trouble codes in the PCM and other modules. Clear the codes and retest the vehicle.
- Check the power and ground connections to the PCM and other control modules to ensure proper voltage supply.
- If necessary, update the PCM software to the latest version to address any known communication issues.
- If all else fails, consider replacing the PCM or any faulty control modules to restore proper communication between systems.
Cost to Fix P1694 Chrysler
The typical repair costs for addressing the P1694 code can vary depending on the specific cause of the issue. In general, replacing faulty wiring or connectors may cost between $100 to $300, while replacing a control module or the PCM can range from $500 to $1500. Additional diagnostic fees and labor costs may apply, with total repair expenses potentially exceeding $2000 in some cases. It is recommended to consult a professional mechanic for an accurate diagnosis and cost estimate based on the vehicle's make and model, as well as the extent of the communication issues between control modules.
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