What Does U1074 Mean?
The module is not receiving valid engine oil level or pressure data over the SCP communication network. The PCM or oil monitoring module is not broadcasting this information properly.
Common Causes
35%
Failed engine oil level/pressure sensor or circuit
25%
PCM or oil control module communication fault
20%
Damaged SCP bus wiring affecting oil data transmission
12%
Instrument cluster unable to receive oil data
8%
Corrupted module software or calibration
Diagnostic Steps
1
Step 1: Check for oil pressure or oil level sensor codes in PCM/BCM memory
2
Step 2: Verify oil pressure/level sensor readings in scan tool live data match actual conditions
3
Step 3: Test oil pressure with mechanical gauge to confirm sensor accuracy
4
Step 4: Inspect oil sensor connector and wiring for damage or oil contamination
5
Step 5: Monitor SCP bus for oil system PID broadcasts from source module
Estimated Repair Cost
$150 - $700
Parts + labor, varies by vehicle and location
The module is not receiving valid engine oil level or pressure data over the SCP communication network. The PCM or oil monitoring module is not broadcasting this information properly.
The most common cause of U1074 (SCP (J1850) Invalid or Missing Data for Engine Oil) is: Failed engine oil level/pressure sensor or circuit
Typical repair costs for U1074 range from $150 to $700, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Driver will not receive low oil pressure warnings, risking catastrophic engine damage. Loss of oil monitoring capability creates serious engine protection concern.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1074 to identify the root cause.
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Quick Info
Category
Network
System
Engine Lubrication / Communication Network
Difficulty
Type
Manufacturer
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