Club Car DS Villager 4, Maintenance And Service Manual

Page: 335 / 510

SECTION 18 — GASOLINE VEHICLE - TROUBLESHOOTING
AND ELECTRICAL SYSTEM
18
Gasoline Vehicle - Troubleshooting and Electrical System
DANGER
• See General Warnings on page 1-2.
WARNING
• See General Warnings on page 1-2.
GENERAL INFORMATION
WARNING
• To prevent damage to the ECU, never mix the black and gray connectors that attach to it. The black
connector is tethered to the ECU mounting plate to help avoid installing it in the gray port.
This section contains the information required to correctly troubleshoot the EFI gas vehicle. In addition to
troubleshooting, this section contains general information on the electrical system and the circuits of the electrical
system.
ACCESSORIES
For certain powered accessories, use the 9-pin connector located behind the instrument panel.
FEATURES OF THE ELECTRONIC FUEL INJECTION (EFI) SYSTEM
• Closed-loop system, oxygen (O2) sensor included
• Controls fuel pump, fuel injector, malfunction indicator light (MIL)
• Inputs: Temperature/Manifold Absolute Pressure (TMAP), Throttle Position Sensor (TPS), oxygen (O2) sensor,
crank sensor, ignition timing, cylinder head temp
• Separate EFI wire harness
GROUND LOCATIONS
Electrical grounds are located at the following areas:
• At the Battery: The starter/generator, voltage regulator, ECU, throttle position sensor and fuel pump module all
connect to the main wire harness and goes to the B– battery terminal.
• Between Engine and Battery: The engine and chassis each have a separate lead that connects to the main wire
harness and goes to the B– battery terminal.
• Top of Fuel Tank: The fuel tank has a lead that connects to the main wire harness and goes to the B– battery
terminal.
2020 Precedent,Villager 2 and 4 Maintenance and Service Manual Page 18-1