What Does P1467 Mean?
The control module has detected implausible differences between the battery voltages supplying the heated catalyst power switches. This suggests unbalanced loading, a failing battery cell, or faulty power distribution components in hybrid/electric catalyst heating systems.
Common Causes
35%
Weak or failing high voltage battery with cell imbalance
30%
Failed or failing heated catalyst power switch creating uneven load
20%
Poor connections or high resistance in power distribution circuit
10%
Voltage sensing circuit fault in control module
5%
Uneven heating element resistance in catalyst
Diagnostic Steps
1
Step 1: Monitor individual power switch battery voltages with scan tool during heated catalyst operation
2
Step 2: Perform high voltage battery health check and cell balance test
3
Step 3: Measure voltage drop across power cables and connections under load
4
Step 4: Check current draw of each heated catalyst circuit for balance
5
Step 5: Inspect power switches for damage and test operation independently if possible
Estimated Repair Cost
$400 - $2,500
Parts + labor, varies by vehicle and location
The control module has detected implausible differences between the battery voltages supplying the heated catalyst power switches. This suggests unbalanced loading, a failing battery cell, or faulty power distribution components in hybrid/electric catalyst heating systems.
The most common cause of P1467 (Heated Catalyst Comparison Battery Voltages of Power Switches Plausibility) is: Weak or failing high voltage battery with cell imbalance
Typical repair costs for P1467 range from $400 to $2,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Generally safe to drive but heated catalyst disabled. Voltage imbalance could indicate battery problems that may affect overall vehicle operation if severe.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1467 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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