What Does P1464 Mean?
This code indicates an electrical circuit fault with the second battery temperature sensor associated with the heated catalyst system. This is typically found on hybrid or electric vehicles with electrically heated catalytic converters for cold-start emissions reduction.
Common Causes
40%
Failed heated catalyst battery temperature sensor 2
30%
Open or short circuit in sensor wiring harness
20%
Corroded or loose connector at sensor or ECU
10%
Water intrusion or damage to sensor mounting area
Diagnostic Steps
1
Step 1: Inspect sensor connector and wiring for damage, corrosion, or water intrusion
2
Step 2: Measure sensor resistance and compare to temperature/resistance chart specifications
3
Step 3: Check for continuity and shorts in wiring between sensor and control module
4
Step 4: Monitor sensor voltage/signal with scan tool during temperature changes
5
Step 5: Replace sensor if electrical values are out of specification
Estimated Repair Cost
$200 - $600
Parts + labor, varies by vehicle and location
This code indicates an electrical circuit fault with the second battery temperature sensor associated with the heated catalyst system. This is typically found on hybrid or electric vehicles with electrically heated catalytic converters for cold-start emissions reduction.
The most common cause of P1464 (Heated Catalyst Battery Temperature Sensor 2 Electrical) is: Failed heated catalyst battery temperature sensor 2
Typical repair costs for P1464 range from $200 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive but heated catalyst function may be disabled. Cold start emissions will be elevated and fuel economy may decrease slightly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1464 to identify the root cause.
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Quick Info
Category
Powertrain
System
Hybrid Emissions Control System
Difficulty
Type
Manufacturer
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