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FUEL SYSTEM (DFI) 3-91
Stick Coils #1, #2, #3, #4: (Service Code 51, 52, 53, 54)
Stick Coil #1: Service Code 51
Stick Coil #2: Service Code 52
Stick Coil #3: Service Code 53
Stick Coil #4: Service Code 54
Removal/Installation
CAUTION
Never drop the stick coils, especially on a hard sur-
face. Such a shock to the stick coil can damage it.
•
Refer to the Stick Coil (Ignition Coil together with Spark
Plug Cap) Removal/Installation in the Electrical System
chapter (see Stick C oil (Ignition Coil together with Spark
Plug Cap) Removal/Installation in the Electrical System
chapter).
Input Voltage Inspection
NOTE
○
Be sure the battery is fully charged.
•
Turn the ignition switch OFF.
•
Remove the ECU (see ECU Removal).
○
Do not disconnect the ECU connectors.
•
Connect a digital meter [A] as shown, with the needle
adapter set.
Special Tool - Needle Adapter Set: 57001-1457
StickCoilInputVoltageatECU
Connections for Stick Coil #1
Meter (+) → BK lead (terminal 47)
Meter (–) → BK/Y lead (terminal 52)
Connections for Stick Coil #2
Meter (+) → BK/G lead (terminal 60)
Meter (–) → BK/Y lead (terminal 52)
Connections for Stick Coil #3
Meter (+) → BK/W lead (terminal 45)
Meter (–) → BK/Y lead (terminal 52)
Connections for Stick Coil #4
Meter (+) → BK/O lead (terminal 58)
Meter (–) → BK/Y lead (terminal 52)
•
Measure the input voltage to each primary winding of the
stick coils with the engine stopped, and with the connec-
tors joined.
•
Turn the ignition switch ON.
Input Voltage at ECU
Standard: Battery Voltage
If the reading is out of the standard, check the wiring (see
wiring diagram in this section).
If the r eading is good, the input voltage is normal. Crank
the engine, and check the peak voltage of the stick coils
(see Stick Coil Primary Peak Voltage Inspection in the
Electrical System chapter) in order to check the primary
coils.
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