What Does C0297 Mean?
C0297 indicates that a chassis control module (typically the ABS/ESC module) has failed to receive required powertrain configuration data from the PCM/ECM via the vehicle's communication network (CAN bus). This data is necessary for proper integration of chassis stability systems with engine torque management and transmission operation. The fault suggests a communication breakdown between the powertrain control module and chassis systems, preventing proper coordination of traction control, stability control, and ABS functions.
Common Causes
35%
CAN bus communication fault between PCM and ABS/chassis module due to wiring issues, corrosion, or damaged connectors
30%
Powertrain Control Module (PCM/ECM) software corruption or failure to transmit configuration data
20%
ABS/Chassis control module failure or software issue preventing proper data reception
10%
Missing or incomplete PCM programming/calibration after recent service or module replacement
5%
Low system voltage or power supply issues affecting module communication during startup
Diagnostic Steps
1
Step 1: Using the scan tool, verify all control modules are communicating properly. Check for communication DTCs (U-codes) in all modules, particularly the PCM and ABS/chassis module. Note any modules that show 'No Response' or 'Communication Lost'.
2
Step 2: With scan tool, attempt to view live data from both PCM and ABS module simultaneously. Verify CAN bus voltage on both high and low lines (should read approximately 2.5V each with key on, engine off). Check for proper 120-ohm termination resistance across CAN H and CAN L wires.
3
Step 3: Perform thorough visual inspection of wiring harnesses between PCM and ABS module, focusing on areas prone to damage (frame rails, near exhaust, wheel wells). Inspect all related module connectors for corrosion, pushed-back pins, or water intrusion. Check all chassis and PCM ground connections for tightness and corrosion.
4
Step 4: Check battery voltage with engine off (should be 12.4V+) and charging voltage with engine running (13.8-14.5V). Verify that system voltage remains stable above 11V during cranking, as low voltage can disrupt module initialization.
5
Step 5: Using manufacturer-specific diagnostics if available, verify PCM and ABS module software versions are current and compatible. Check for available software updates or calibration issues. Attempt to manually command PCM to transmit configuration data if tool supports bidirectional control.
6
Step 6: If all communication pathways are verified good and voltage is stable, suspect internal module fault. Clear codes, perform key cycle relearn procedure per manufacturer specifications, and road test. If code returns immediately, replace the module that fails to communicate (typically PCM if it's not sending data, or ABS module if it's not receiving).
Estimated Repair Cost
$100 - $1,500
Parts + labor, varies by vehicle and location
C0297 indicates that a chassis control module (typically the ABS/ESC module) has failed to receive required powertrain configuration data from the PCM/ECM via the vehicle's communication network (CAN bus). This data is necessary for proper integration of chassis stability systems with engine torque ...
The most common cause of C0297 (Powertrain Configuration Data Not Received) is: CAN bus communication fault between PCM and ABS/chassis module due to wiring issues, corrosion, or damaged connectors
Typical repair costs for C0297 range from $100 to $1,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may be driven cautiously, but stability control, traction control, and ABS functions may be compromised or completely inoperative. Avoid aggressive driving, wet/slippery conditions, and address promptly as safety systems are affected.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C0297 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Chassis
System
Chassis Control / Vehicle Communication Network
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
