What Does P1610 Mean?
The PCM's Keep Alive Memory (KAM) has failed its internal diagnostic test. This memory stores learned adaptations for fuel trim, idle speed, shift points, and other critical parameters.
Common Causes
50%
PCM internal memory failure or corruption
25%
Low battery voltage or voltage interruption during PCM operation
15%
Corroded or loose PCM power supply or ground connections
10%
Failed capacitor or memory chip within PCM
Diagnostic Steps
1
Step 1: Test battery condition, voltage under load, and charging system output (should be 13.8-14.5V)
2
Step 2: Inspect all PCM power and ground connections for corrosion, proper torque, and continuity
3
Step 3: Measure voltage at PCM power supply pins with key on and engine running
4
Step 4: Attempt to clear codes and drive vehicle through multiple drive cycles to see if memory stabilizes
5
Step 5: Test for voltage drops or fluctuations in PCM power supply during engine cranking and operation
Estimated Repair Cost
$200 - $1,400
Parts + labor, varies by vehicle and location
The PCM's Keep Alive Memory (KAM) has failed its internal diagnostic test. This memory stores learned adaptations for fuel trim, idle speed, shift points, and other critical parameters.
The most common cause of P1610 (Keep Alive Memory Test Failure) is: PCM internal memory failure or corruption
Typical repair costs for P1610 range from $200 to $1,400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may exhibit poor driveability, failed emissions, and erratic performance as PCM cannot maintain learned parameters. Generally safe but may stall or run poorly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1610 to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Control Module Memory
Difficulty
Type
Manufacturer
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