What Does U1008 Mean?
The receiving control module is not getting engine torque data from the powertrain control module over the SCP network. This data is used by transmission, ABS, and traction control systems for proper operation.
Common Causes
40%
Powertrain control module communication fault or internal failure
25%
SCP network wiring damage between PCM and other modules
20%
PCM power or ground circuit problem
15%
Software version mismatch or corrupted PCM programming
Diagnostic Steps
1
Step 1: Verify PCM is communicating with scan tool and can read live engine data; check for other PCM-related codes
2
Step 2: Check all PCM fuses and relays; verify battery voltage is present at PCM power supply pins with key on
3
Step 3: Inspect PCM connector(s) for corrosion, moisture, or damaged pins; check pin tension and connector lock
4
Step 4: Verify PCM grounds are clean and tight using voltage drop test (should be less than 0.1V)
5
Step 5: If PCM power/ground and connections are good, check for available software updates or reprogram PCM
Estimated Repair Cost
$100 - $1,200
Parts + labor, varies by vehicle and location
The receiving control module is not getting engine torque data from the powertrain control module over the SCP network. This data is used by transmission, ABS, and traction control systems for proper operation.
The most common cause of U1008 (SCP (J1850) Invalid or Missing Data for Engine Torque) is: Powertrain control module communication fault or internal failure
Typical repair costs for U1008 range from $100 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May affect transmission shift quality, traction control, and stability control operation. Drive cautiously, especially in adverse conditions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1008 to identify the root cause.
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Quick Info
Category
Network
System
Powertrain Communication
Difficulty
Type
Manufacturer
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