Service manual

Table Of Contents
FUEL SYSTEM (DFI) 3-39
Self-Diagnosis
Service Code Table
Service
Code
Flicks of Tester
Problems
11
Throttle sensor malfunction, wiring
open or short
12
Inlet air pressure sensor malfunction,
wiring open or short
13
Inlet air temperature sensor
malfunction, wiring open or short
14
Water temperature sensor
malfunction, wiring open or short
21
Crankshaft sensor malfunction, wiring
open or short
24
Speed sensor malfunction, wiring
open or short
31
Vehicle-down sensor, malfunction,
wiring open or short
41
Injector malfunction, wiring open or
short
46
Fuel pump relay malfunction, relay
is stuck
51
Ignition coil #1 malfunction, wiring
open or short
52
Ignition coil #2 malfunction, wiring
open or short
Notes:
The ECU may be involved in these problems. If all the parts and c ircuits are checked out good, be
sure to check the ECU for ground and power supply. If the ground and power supply are checked
out good, replace the ECU.
When no service code is displayed, the electrical parts of the DFI system has no fault, and the
mechanical parts of the DFI system and the engine are suspect.