What Does U1010 Mean?
The receiving module is not receiving engine air intake data from the PCM over the SCP network. This data includes MAF/MAP sensor readings used by other systems for calculations.
Common Causes
35%
PCM not broadcasting air intake data due to internal fault
30%
SCP network communication problem between PCM and receiving module
20%
Faulty MAF or MAP sensor preventing PCM from generating valid data
15%
PCM connector corrosion or wiring damage
Diagnostic Steps
1
Step 1: Use scan tool to verify PCM is reading valid MAF/MAP sensor data in live data stream
2
Step 2: Check for any powertrain codes related to air intake sensors (P0100-P0109 series)
3
Step 3: Verify which module is requesting air intake data by checking code location in scan tool (often ABS or transmission)
4
Step 4: Test communication between PCM and requesting module by checking if other data parameters are being received
5
Step 5: Inspect SCP bus connections at both PCM and receiving module for damage or corrosion
Estimated Repair Cost
$100 - $1,000
Parts + labor, varies by vehicle and location
The receiving module is not receiving engine air intake data from the PCM over the SCP network. This data includes MAF/MAP sensor readings used by other systems for calculations.
The most common cause of U1010 (SCP (J1850) Invalid or Missing Data for Engine Air Intake) is: PCM not broadcasting air intake data due to internal fault
Typical repair costs for U1010 range from $100 to $1,000, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Usually minor impact on drivability. May affect transmission shift patterns or secondary systems. Safe to drive but should be repaired promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1010 to identify the root cause.
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Quick Info
Category
Network
System
Engine Management Communication
Difficulty
Type
Manufacturer
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