What Does U1167 Mean?
This code indicates the audio system module is not receiving valid data from the cassette tape player over the SCP (Standard Corporate Protocol) network bus. The cassette module is either sending corrupted data, no data at all, or has lost communication with the network.
Common Causes
35%
Failed or disconnected cassette tape player module
30%
Corroded or damaged wiring harness between cassette player and SCP bus
20%
Poor ground connection at cassette player module
10%
SCP network bus communication fault or short circuit
5%
Audio control module software corruption or failure
Diagnostic Steps
1
Step 1: Verify cassette player module is powered using multimeter (check 12V supply and ground)
2
Step 2: Inspect all connectors at cassette player for corrosion, bent pins, or loose connections
3
Step 3: Monitor SCP bus voltage while accessing cassette function - should see 0-5V digital pulses
4
Step 4: Check for aftermarket audio equipment that may be interfering with factory SCP bus
5
Step 5: Substitute cassette player module with known-good unit if available to confirm module failure
Estimated Repair Cost
$150 - $450
Parts + labor, varies by vehicle and location
This code indicates the audio system module is not receiving valid data from the cassette tape player over the SCP (Standard Corporate Protocol) network bus. The cassette module is either sending corrupted data, no data at all, or has lost communication with the network.
The most common cause of U1167 (SCP (J1850) Invalid or Missing Data for Cassette Tape) is: Failed or disconnected cassette tape player module
Typical repair costs for U1167 range from $150 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
No direct safety impact. Vehicle remains safe to drive, only affects cassette player functionality.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U1167 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Network
System
Infotainment/Audio System
Difficulty
Type
Manufacturer
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
