DTC P1602

Circuit Description

The PCM receives messages from the ABS controller to activate the traction control system. When messages are not transmitted properly between the ABS controller and PCM, a DTC P1602 will set.

Conditions for Setting the DTC

Important

The ABS controller circuit is continuously checked when the ignition is ON.

DTC P1602 will set if:

• No message is received from the ABS controller OR
• A certain number of incorrect messages have been sent to the PCM.

Diagnostic Aids

• Check the tightness of the female terminal grip with a spare male terminal.
• If DTC P1602 is set, traction control will be disabled.