What Does P1652 Mean?
The ECM has detected a fault in the circuit that sends powertrain-induced chassis pitch signals to the suspension control system. This signal helps active suspension systems compensate for acceleration and braking forces.
Common Causes
35%
Shorted or open circuit to suspension control module
30%
Failed suspension control module or internal circuit fault
20%
Corroded connector between ECM and suspension module
10%
ECM internal driver circuit failure
5%
Software calibration error or module coding mismatch
Diagnostic Steps
1
Step 1: Verify vehicle is equipped with active suspension or adaptive damping system
2
Step 2: Check for stored codes in suspension control module using scan tool
3
Step 3: Locate pitch signal circuit in wiring diagram and test for proper voltage at suspension module connector
4
Step 4: Check signal circuit for shorts to ground, shorts to power, and continuity
5
Step 5: Monitor live data for pitch signal output from ECM during acceleration and braking
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The ECM has detected a fault in the circuit that sends powertrain-induced chassis pitch signals to the suspension control system. This signal helps active suspension systems compensate for acceleration and braking forces.
The most common cause of P1652 (Powertrain Induced Chassis Pitch Output Circuit) is: Shorted or open circuit to suspension control module
Typical repair costs for P1652 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Active suspension may operate in default mode without adapting to acceleration/braking. Ride quality may be reduced but vehicle remains safe to drive.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1652 to identify the root cause.
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Quick Info
Category
Powertrain
System
Active Suspension Control / CAN Communication
Difficulty
Type
Manufacturer
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