Test K: The Stability Assist Is Inoperative
PINPOINT TEST K: THE STABILITY ASSIST IS INOPERATIVENormal Operation
Engine torque modulation is achieved by regulating fuel and spark to the cylinders. The stability assist system operates using the anti-lock brake system (ABS) module to interact with the powertrain control module (PCM) to reduce engine torque if one or both rear wheels lose traction and begin to spin during acceleration.
Voltage is supplied by the instrument cluster to the stability assist switch through circuit 1412 (WH/PK). The signal is grounded through the stability assist switch on circuit 1205 (BK). The instrument cluster then sends a stability assist disable command over the standard corporate protocol (SCP) network.
Possible Causes
^ 1412 (WH/PK) short to ground
^ ABS module
^ stability assist switch
Tests K1-K2:
Tests K3-K5:
