Table of Contents
- 1. Meaning of the P1496 Code
- 2. Possible Causes
- 3. Common Symptoms
- 4. Affected Vehicle Models
- 5. Severity of P1496 Code
- 6. Is It Safe to Drive?
- 7. Diagnosing with iCarsoft CR MAX or CR Eagle
- 8. Solutions
- 9. Repair Costs
- 10. Prevention Tips
- 11. Advantages of Using iCarsoft Tools
- 12. Frequently Asked Questions
1. Meaning of the P1496 Code
The P1496 OBD2 code indicates a low voltage reference signal problem in the Powertrain Control Module (PCM). It often involves circuits using the 5-volt reference, such as sensors critical for engine performance.
2. Possible Causes
- Faulty Powertrain Control Module (PCM)
- Short or open circuits in wiring harnesses
- Malfunctioning sensors connected to the 5V reference
- Battery or alternator voltage irregularities
3. Common Symptoms
- Check Engine Light illuminated
- Engine stalling or reduced performance
- Voltage fluctuations in electrical system
4. Affected Vehicle Models
Most common in Chrysler, Jeep, and Dodge vehicles but can appear in other brands.
5. Severity of P1496 Code
Moderate to severe. Ignoring this DTC may cause unpredictable performance or damage to the PCM.
6. Is It Safe to Drive?
Not recommended. The engine may run erratically, creating a safety risk. Use an OBD2 scanner like iCarsoft CR MAX for confirmation.
7. Diagnosing with iCarsoft CR MAX or CR Eagle
Steps:
- Connect iCarsoft CR MAX or CR Eagle to OBD2 port
- Select vehicle make/model/year
- Read P1496 code via "Read Fault Codes"
- Check real-time 5V reference circuit data
- Repair and clear fault codes
8. Solutions
- Repair damaged wiring
- Replace faulty sensors
- Test or replace PCM
- Check alternator/battery voltage
9. Repair Costs
- Wiring repair: $50–$150
- Sensor replacement: $100–$300
- PCM replacement: $500–$1,500
10. Prevention Tips
- Inspect wiring harnesses regularly
- Maintain battery and alternator health
- Use OEM quality replacement parts
11. Advantages of Using iCarsoft Tools
- Advanced OBD2 diagnostics
- Real-time data analysis
- Beginner-friendly yet professional
12. Frequently Asked Questions (FAQ)
What does P1496 mean?
P1496 means the PCM detects a low 5-volt reference signal in the OBD2 system.
Can I fix P1496 myself?
Yes, if you have an OBD2 scanner like iCarsoft CR MAX. Start by checking wiring and sensors.
Which vehicles show P1496 most often?
It’s most common in Chrysler, Jeep, Dodge models, but other cars can also trigger it.
Which OBD2 scanner is best for P1496?
The iCarsoft CR MAX and CR Eagle provide accurate diagnostics and easy code clearing.
Will clearing the code fix P1496?
Clearing alone won’t solve it. You must fix the underlying wiring, sensor, or PCM issue first.
