Traction Control Delivered Torque Output Circuit
Table of contents
P1689 HUMMER Possible Causes
- Faulty Electronic Brake Control Module (EBCM)
- Electronic Brake Control Module (EBCM) harness is open or shorted
- Electronic Brake Control Module (EBCM) circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How do I fix code P1689 HUMMER?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1689 HUMMER code
The cost of diagnosing the P1689 HUMMER code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
P1689 HUMMER Description
The Electronic Brake Control Module (EBCM) and the Powertrain Control Module (PCM) simultaneously control the Traction Control System (TCS). The PCM sends a Delivered Torque message via a Pulse Width Modulated (PWM) signal to the EBCM. The duty cycle of the signal is used to determine how much engine torque the PCM is delivering.
