Code
U0467
Generic
U — Network/User
Invalid Data Received From Fuel Additive Control Module
Views:
UK: 14
EN: 20
RU: 19
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent CAN/LIN communication between PCM and fuel additive module
- Damaged wiring, chafed harness, or bent/missing connector pins
- Corroded or loose connectors or poor grounding
- Fuel Additive Control Module internal fault or corrupted firmware
- Incorrect module coding or software mismatch after service or module replacement
- Low battery voltage or poor supply to module during communication
Symptoms
- Malfunction Indicator Lamp (MIL) or warning light illuminated
- Communication-related trouble codes (other U-codes) present
- Fuel additive dosing disabled or fault indicated on dash (if vehicle supports additive dosing)
- Possible degraded emissions control or diagnostic readiness failures
- Intermittent or persistent module not responding to scan tool
- No obvious engine mechanical symptoms in many cases
What to check
- Read all stored and pending DTCs and freeze frame with a capable scan tool; note related U-codes
- Visually inspect connectors and wiring at the Fuel Additive Control Module and PCM/gateway for damage, corrosion, or loose pins
- Verify battery voltage and charging system condition (normal battery voltage 12.4–14.7 V with engine running)
- Check module power and ground circuits for proper voltage and continuity
- Verify presence of expected CAN/LIN messages and module communications using a scan tool or CAN bus diagnostic tool
- Measure CAN_H and CAN_L voltages with key on (expected ~2.5 V common mode; idle approx. 2.5 ±0.5 V; differential ~2 V when active)
Signal parameters
- CAN High voltage (idle and active levels)
- CAN Low voltage (idle and active levels)
- Differential CAN bus voltage and waveform shape (oscilloscope)
- Message IDs expected from Fuel Additive Control Module and their update frequencies (Hz)
- Payload data bytes from expected messages (valid ranges/formats)
- Module supply voltage (V) and ground continuity (ohms)
Diagnostic algorithm
- Capture all U- and P-codes and freeze frame data. Note if multiple modules show communication faults.
- Inspect connectors, pins and wiring at the Fuel Additive Module and at the PCM/gateway. Repair any physical damage or corrosion.
- Verify battery voltage and charging system; perform a load test if battery is weak. Recharge or replace if necessary.
- With key on (engine off), check power and ground circuits to the module for correct voltage and good ground reference.
- Use a scan tool to request data from the Fuel Additive Module. If module is not present or not responding, record behavior.
- Check CAN bus using a multimeter and oscilloscope/CAN analyzer: verify idle voltages, differential voltage during activity, message frequency, and error frames.
- If intermittent, perform a wiggle test on harness while monitoring communications and codes. Inspect for chafing where harness passes through body or engine components.
- Check for proper bus termination (approx. 60 ohms). Repair or replace connectors/terminators as needed.
- If wiring and bus are good, confirm module software/coding level and compare with OEM specification; reprogram/update if required.
- If module still produces invalid data after wiring, power, and software checks, bench-test or replace the Fuel Additive Control Module per manufacturer procedures.
- Clear codes and re-test under the conditions that produced the fault. If intermittent, capture live data/logs during replication.
Likely causes
- Open, short to battery, or short to ground in the CAN high/low pair between PCM and fuel additive module
- Corroded connector at the additive module or PCM causing intermittent data corruption
- Module lost programming or has incompatible calibration after replacement
- Module internal processor fault producing invalid message payloads
- Poor ground at module causing unstable reference for data signalling
- Missing or damaged CAN termination resistor(s) causing abnormal bus voltages
Fault status
Status
Invalid data received from Fuel Additive Control Module — communication/data integrity fault. Inspect CAN bus, module power/ground, connectors, and module programming.
Repair difficulty: Medium
Diagnostic time: 1.5-4.0 hours
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Code
U0467
HYUNDAI
U — Network/User
Invalid Data Received From Fuel Additive Control Module
Views:
UK: 12
EN: 13
RU: 13
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent CAN/LIN communication between PCM and fuel additive module
- Damaged wiring, chafed harness, or bent/missing connector pins
- Corroded or loose connectors or poor grounding
- Fuel Additive Control Module internal fault or corrupted firmware
- Incorrect module coding or software mismatch after service or module replacement
- Low battery voltage or poor supply to module during communication
Symptoms
- Malfunction Indicator Lamp (MIL) or warning light illuminated
- Communication-related trouble codes (other U-codes) present
- Fuel additive dosing disabled or fault indicated on dash (if vehicle supports additive dosing)
- Possible degraded emissions control or diagnostic readiness failures
- Intermittent or persistent module not responding to scan tool
- No obvious engine mechanical symptoms in many cases
What to check
- Read all stored and pending DTCs and freeze frame with a capable scan tool; note related U-codes
- Visually inspect connectors and wiring at the Fuel Additive Control Module and PCM/gateway for damage, corrosion, or loose pins
- Verify battery voltage and charging system condition (normal battery voltage 12.4–14.7 V with engine running)
- Check module power and ground circuits for proper voltage and continuity
- Verify presence of expected CAN/LIN messages and module communications using a scan tool or CAN bus diagnostic tool
- Measure CAN_H and CAN_L voltages with key on (expected ~2.5 V common mode; idle approx. 2.5 ±0.5 V; differential ~2 V when active)
Signal parameters
- CAN High voltage (idle and active levels)
- CAN Low voltage (idle and active levels)
- Differential CAN bus voltage and waveform shape (oscilloscope)
- Message IDs expected from Fuel Additive Control Module and their update frequencies (Hz)
- Payload data bytes from expected messages (valid ranges/formats)
- Module supply voltage (V) and ground continuity (ohms)
Diagnostic algorithm
- Capture all U- and P-codes and freeze frame data. Note if multiple modules show communication faults.
- Inspect connectors, pins and wiring at the Fuel Additive Module and at the PCM/gateway. Repair any physical damage or corrosion.
- Verify battery voltage and charging system; perform a load test if battery is weak. Recharge or replace if necessary.
- With key on (engine off), check power and ground circuits to the module for correct voltage and good ground reference.
- Use a scan tool to request data from the Fuel Additive Module. If module is not present or not responding, record behavior.
- Check CAN bus using a multimeter and oscilloscope/CAN analyzer: verify idle voltages, differential voltage during activity, message frequency, and error frames.
- If intermittent, perform a wiggle test on harness while monitoring communications and codes. Inspect for chafing where harness passes through body or engine components.
- Check for proper bus termination (approx. 60 ohms). Repair or replace connectors/terminators as needed.
- If wiring and bus are good, confirm module software/coding level and compare with OEM specification; reprogram/update if required.
- If module still produces invalid data after wiring, power, and software checks, bench-test or replace the Fuel Additive Control Module per manufacturer procedures.
- Clear codes and re-test under the conditions that produced the fault. If intermittent, capture live data/logs during replication.
Likely causes
- Open, short to battery, or short to ground in the CAN high/low pair between PCM and fuel additive module
- Corroded connector at the additive module or PCM causing intermittent data corruption
- Module lost programming or has incompatible calibration after replacement
- Module internal processor fault producing invalid message payloads
- Poor ground at module causing unstable reference for data signalling
- Missing or damaged CAN termination resistor(s) causing abnormal bus voltages
Fault status
Status
Invalid data received from Fuel Additive Control Module — communication/data integrity fault. Inspect CAN bus, module power/ground, connectors, and module programming.
Repair difficulty: Medium
Diagnostic time: 1.5-4.0 hours
Similar codes
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