Pinpoint Tests DP: Powertrain Control Module (PCM) Vehicle Speed: Introduction

WARNING: This page is about a different variant/trim than selected.

WARNING: TO PREVENT THE RISK OF HIGH-VOLTAGE SHOCK, ALWAYS FOLLOW PRECISELY ALL WARNINGS AND SERVICE INSTRUCTIONS, INCLUDING INSTRUCTIONS TO DEPOWER THE SYSTEM. THE HIGH-VOLTAGE HYBRID SYSTEM UTILIZES APPROXIMATELY 300 VOLTS DC, PROVIDED THROUGH HIGH-VOLTAGE CABLES TO ITS COMPONENTS AND MODULES. THE HIGH-VOLTAGE CABLES AND WIRING ARE IDENTIFIED BY ORANGE HARNESS TAPE OR ORANGE WIRE COVERING. ALL HIGH-VOLTAGE COMPONENTS ARE MARKED WITH HIGH-VOLTAGE WARNING LABELS WITH A HIGH-VOLTAGE SYMBOL. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

The vehicle has three methods of calculating vehicle speed:

from the anti-lock brake system (ABS)
from the transaxle control module (TCM)
from the PCM engine speed and the TCM generator speed

Refer to SECTION 1: DESCRIPTION AND OPERATION for more information.

This pinpoint test is intended to determine which of the three vehicle speed inputs caused the PCM vehicle speed diagnostic trouble code (DTC).