Lights SUZUKI SWIFT 2006 2.G Service Workshop Manual

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Brake
Foot brake
Check the following:
• that brake pedal has proper travel,
• that brake works properly,
• that it is free from noise,
• that vehicle does not pull to one side when brake is applied.
• and that brake do not drag.
Parking brake
Check that lever has proper travel.
WARNING!
With vehicle parked on a fairly steep slope,
make sure nothing is in the way downhill to
avoid any personal injury or property
damage. Be prepared to apply regular brake
quickly even if vehicle should start to move.

Check to ensure that parking brake is fully effective
when the vehicle is stopped on the safe slope and brake
lever is pulled all the way.
Steering
• Check to ensure that steering wheel is free from instability, or abnormally heavy feeling. • Check that the vehicle does not wander or pull to one
side.
Engine
• Check that engine responds readily at all speeds.
• Check that engine is free from abnormal noise and abnormal vibration.
Body, Wheels and Power Transmitting System
Check that body, wheels and power transmitting system
are free from abnormal noise and abnormal vibration or
any other abnormal condition.
Meters and Gauge
Check that speedometer, odometer, fuel meter,
temperature gauge, etc. are operating accurately.
Lights
Check that all lights operate properly.
Windshield Defroster
Periodically check that ai r comes out from defroster
outlet when operating heater or air conditioning.
Set mode control lever to defroster position and fan
switch lever to “HI” position for this check.
Specifications
Tightening Torque SpecificationsS7RS0B0207001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Recommended Fluids and LubricantsS7RS0B0208001
Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Engine oil drain plug 35 3.5 25.5 )
Oil filter 14 1.4 10.5 for reference )
Engine oilSG, SH, SJ, SL or SM grade (Refer to “Engine Oil and Filter Change” for engine
oil viscosity.)
Engine coolant
(Ethylene glycol base coolant) “Antifreeze/Antico
rrosion coolant”
Brake fluid Refer to reservoir cap of brake master cylinder.
Manual transaxle oil Refer to “Manual Transaxle Oil Change in Section 5B”.
Automatic transaxle fluid Refer to “A/T Fluid Change in Section 5A”.
Door hinges Engine oil or water resistance chassis grease
Hood latch assembly Engine oil or water resistance chassis grease
Key lock cylinder Spray lubricant

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Engine
Engine General Information and Diagnosis
Precautions
Precautions on Engine ServiceS7RS0B1100001
CAUTION!
The following information on engine service
should be noted carefully, as it is important in
preventing damage, and in contributing to
reliable engine performance.

• When raising or supporting engine for any reason, do
not use a jack under oil pan. Due to small clearance
between oil pan and oil pump strainer, jacking against
oil pan may cause it to be bent against strainer,
resulting in damaged oil pick-up unit.
• It should be kept in mind , while working on engine,
that 12-volt electrical syste m is capable of violent and
damaging short circuits.
When performing any work where electrical terminals
can be grounded, ground cable of the battery should
be disconnected at battery.
• Any time the air cleaner, throttle body or intake manifold is removed, the intake opening should be
covered. This will protect against accidental entrance
of foreign material which could follow intake passage
into cylinder and cause extensive damage when
engine is started.
Precaution on On-Board Diagnostic (OBD)
System
S7RS0B1100005
There are two types of On -Board Diagnostic (OBD)
system, Euro OBD system and non-Euro-OBD system,
depending on the vehicle specification.
As the diagnosis function is different between these two
types, be sure to fully understand the OBD system
referring to “On-Board Diagnostic System Description”.
OBD System Summary Table
Precautions in Diagnosing TroubleS7RS0B1100002
NOTE
There are two types of OBD system
depending on the vehicle specification.
For details, refer to “Precaution on On-Board
Diagnostic (OBD) System”.

• Don’t disconnect couplers from ECM, battery cable
from battery, ECM ground wire harness from engine
or main fuse before confirming diagnostic information
(DTC, freeze frame data, etc.) stored in ECM memory.
Such disconnection will erase memorized information
in ECM memory.
• Diagnostic information stored in ECM memory can be cleared as well as checke d by using SUZUKI scan
tool or OBD generic scan tool. Before using scan tool,
read its Operator’s (Instruction) Manual carefully to
have good understanding as to what functions are
available and how to use it.
For Euro OBD model it is indistinguishable which
module turns on MIL because not only ECM but also
TCM (A/T model) turns on MIL (For details of on-
board diagnostic system for A/T model, refer to “On-
Board Diagnostic System Description in Section 5A”).
Therefore, check both ECM and TCM (A/T model) for
DTC when MIL lights on.
When checking ECM for DTC, keep in mind that DTC
is displayed on the scan tool as follows depending on
the scan tool used.
– SUZUKI scan tool displays DTC detected by ECM.
– OBD generic scan tool displays DTC detected by each of ECM and TCM (A/T model) simultaneously.
• Priorities for diagnosing troubles If two or more DTCs are stored, proceed to the DTC
flow which has been detected earliest in the order and
follow the instructi on in that flow.
If no instructions are given, troubleshoot DTCs
according to the following priorities.
a. DTCs other than DTC P0171 / P0172 (Fuel system too lean / too rich), DTC P0300 / P0301 /
P0302 / P0303 / P0304 (Misfire detected) and
DTC P0401 / P0402 (EGR flow malfunction)
b. DTC P0171 / P0172 (Fuel system too lean / too rich) and DTC P0401 / P0402 (EGR flow
malfunction)
c. DTC P0300 / P0301 / P0302 / P0303 / P0304 (Misfire detected)
Euro OBD
model Non-Euro-OBD
model
Quantity of DTC
related to engine
control Approx. 80 Approx. 60
Freeze frame
data Available Not available
SUZUKI scan
tool Available Available
OBD generic
scan tool Available Not available

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Driving Cycle
A “Driving Cycle” consists of engine startup and engine
shutoff.
2 Driving Cycle Detection Logic
The malfunction detected in the first driving cycle is
stored in ECM memory (in t he form of pending DTC) but
the malfunction indicator lamp does not light at this time.
It lights up at the second detection of same malfunction
also in the next driving cycle.
Pending DTC
Pending DTC means a DTC detected and stored
temporarily at 1 driving cycle of the DTC which is
detected in the 2 driving cycle detection logic.
Freeze Frame Data
ECM stores the engine and driving conditions (in the
form of data as shown in the figure) at the moment of the
detection of a malfunction in its memory. This data is
called “Freeze frame data”.
Therefore, it is possible to know engine and driving
conditions (e.g., whether the engine was warm or not,
where the vehicle was running or stopped, where air/fuel
mixture was lean or rich) when a malfunction was
detected by checking the freeze frame data. Also, ECM
has a function to store each freeze frame data for three
different malfunctions in the order as each malfunction is detected. Utilizing this function,
it is possible to know the
order of malfunctions that ha ve been detected. Its use is
helpful when rechecking or diagnosing a trouble.
Priority of freeze frame data:
ECM has 4 frames where the freeze frame data can be stor ed. The first frame stores the freeze frame data of the
malfunction which was detected first. Howe ver, the freeze frame data stored in this frame is updated according to the
priority described. (If malfunction as described in the upper square “1” is detected while the freeze frame data in the
lower square “2” has been stored, the freeze frame data “2” will be updated by the freeze frame data “1”.)
In the 2nd through the 4th frames, the freeze frame data of each malfunction is stored in the order as each malfunction
is detected. These data are not updated.
Shown in the table are examples of how freeze frame data are stored when two or more malfunctions are detected.
[A]: 1st or 2nd in parentheses here represents which position in the order
the malfunction is detected.
[A]
I3RB0A110002-01
Priority Freeze frame data in frame 1
1 Freeze frame data at initial detection of malfuncti
on among misfire detected (P0300 – P0304), fuel
system too lean (P0171) and fuel system too rich (P0172)
2 Freeze frame data when a malfunctio n other than those in “1” is detected
Malfunction detected order Frame
Frame 1 Frame 2 Frame 3 Frame 4
Freeze frame data to be updated 1st freeze frame
data 2nd freeze frame
data 3rd freeze frame
data
No malfunction No freeze frame data
1 P0401 (EGR)
detected Data at P0401
detectionData at P0401
detection
——
2 P0171 (Fuel system)
detected Data at P0171
detectionData at P0401
detectionData at P0171
detection
—
3 P0300 (Misfire)
detected Data at P0171
detectionData at P0401
detectionData at P0171
detectionData at P0300
detection
4 P0301 (Misfire)
detected Data at P0171
detectionData at P0401
detectionData at P0171
detectionData at P0300
detection

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Freeze frame data clearance:
The freeze frame data is cleared at the same time as
clearance of DTC.
Non-Euro-OBD
ECM diagnosis troubles which may occur in the area
including the following parts w hen the ignition switch is
ON and the engine is running, and indicates the result by
turning on or flashing malfunction indicator lamp (1).
• Heated oxygen sensor
• ECT sensor
•TP sensor
• APP sensor
• MAF sensor
• IAT sensor
• MAP sensor
• CMP sensor
• CKP sensor
• Knock sensor
• Wheel speed sensor (VSS)
• CPU (Central Processing Unit) of ECM
• Oil control valve
• EGR valve
• EVAP canister purge valve
• Ignition coil
• Starter relay
• Radiator fan relay
• CAN communication
• Barometric pressure sensor
• ECM back up power supply
ECM and malfunction indicator lamp (1) operate as
follows.
• Malfunction indicator lamp (1) lights when the ignition switch is turned ON (but t he engine at stop) with the
diagnosis switch terminal ungrounded regardless of
the condition of Engine and Emission control system.
This is only to check the ma lfunction indicator lamp (1)
in the combination meter and its circuit.
• If the above areas of Engine and Emission control system is free from any trouble after the engine start
(while engine is running), malfunction indicator lamp
(1) turns OFF. • When ECM detects a trouble which has occurred in
the above areas, it makes malfunction indicator lamp
(1) turn ON while the engi ne is running to warn the
driver of such occurrence of trouble and at the same
time it stores the trouble area in ECM back-up
memory. (The memory is kept as it is even if the
trouble was only temporary and disappeared
immediately. And it is not erased unless the power to
ECM is shut off for specified time or it is cleared by
SUZUKI scan tool (2).)
For Hong Kong model, DTC can be read by not only
using SUZUKI scan tool but also displayed on
odometer (5) of the combination meter. (i.e. when
diagnosis switch terminal (3) is grounded with a
service wire (4) and ignition switch is turned ON.) For
further detail of the checking procedure, refer to “DTC
Check”.
6. Diagnosis connector
2
1
6 3
5
4
I5RS0C110021-01

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Generator Control System DescriptionS7RS0B1101010
Generator Control System consists of a generator (1), electric load current sensor (7) located in the main fuse box (4)
and ECM (5).
ECM controls generated electricity (adjusting voltage of IC regulator (2)) so that it is suitable for the engine and electric
load conditions. When the electric load increases quickly, generation load of the generator increases quickly and
causes idling to change. To prevent this, ECM makes generated electricity volume vary gradually to stabilize idling.
Also, it reduces the engine load caused by temporary incr ease in electricity generation to cope with the engine
condition (such as when accelerating).
Operation
ECM controls the generated voltage of the generator using “C” terminal (generator control terminal) duty, based on
following information.
• Engine condition (ECT, vehicle speed, engine speed, TP, etc.) (9)
• Battery voltage (ECM backup power voltage) (10)
• Electric load condition (blower motor, rear defogger, head lights, radiator fan, A/C, etc.) (11)
• “FR” terminal output (field coil (3) cont rol duty) which indicates the operation rate (electricity generation condition) of
the generator.
Then the generator uses “C” terminal duty to regulate the adju sting voltage of the IC regulator with the field coil control
duty so as to control its generated voltage (“B” terminal output voltage).
(For more information of the generated voltage, refer to “Charging System Specifications in Section 1J”.)
Furthermore, the generation condition of the generator is co ntrolled to the optimum level by the electric load current
sensor (7) which detects the electrical load condition (cur rent consumption) linearly even when a sudden electrical
load variation occurs and thus the engine load is reduced.
B
IG
L
C
E
6
2
3
FR
5
12 13
14
1IG1
7
4
8
11
10 9
CMO
FCD
GCD
I6RW0H110005-01
6. Ignition switch
12. BCM 14. CAN driver
8. Battery 13. Combination meter

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Step 2: DTC / Freeze Frame Data Check, Record and
Clearance
First, check DTC (including pending DTC), referring to
“DTC Check”. If DTC is indicated, print it and freeze
frame data or write them down and then clear them by
referring to “DTC Clearance”. DTC indicates malfunction
that occurred in the system but does not indicate
whether it exists now or it occurred in the past and the
normal condition has been restored now. To check which
case applies, check the sy mptom in question according
to Step 5 and recheck DTC according to Step 6 and 7.
Attempt to diagnose a trouble based on DTC in this step
only or failure to clear the DTC in this step will lead to
incorrect diagnosis, trouble diagnosis of a normal circuit
or difficulty in troubleshooting.
Step 3 and 4: Visual Inspection
As a preliminary step, be sure to perform visual check of
the items that support proper function of the engine
referring to “Visual Inspection”.
Step 5: Trouble Symptom Confirmation
Based on information obtained in “Step 1: Customer
Complaint Analysis: ” and “Step 2: DTC / Freeze Frame
Data Check, Record and Clearance: ”, confirm trouble
symptoms. Also, reconfirm DTC according to “DTC
Confirmation Procedure” described in each DTC diag.
flow.
Step 6 and 7: Rechecking and Record of DTC /
Freeze Frame Data
Refer to “DTC Check” for checking procedure.
Step 8: Engine Basic Inspection and Engine
Symptom Diagnosis
Perform basic engine check according to “Engine Basic
Inspection” first. When the end of the flow has been
reached, check the parts of the system suspected as a
possible cause referring to “Engine Symptom Diagnosis”
and based on symptoms appearing on the vehicle
(symptoms obtained through steps of customer
complaint analysis, trouble symptom confirmation and/or
basic engine check) and repair or replace faulty parts, if
any.
Step 9: Troubleshooting for DTC (See each DTC
Diag. Flow)
Based on the DTC indicated in Step 6 or 7 and referring
to the applicable DTC diag. flow, locate the cause of the
trouble, namely in a sensor, switch, wire harness,
connector, actuator, ECM or other part and repair or
replace faulty parts. Step 10: Intermittent Problems Check
Check parts where an intermit
tent trouble is easy to
occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connec tion Inspection in Section
00” and related circuit of DTC recorded in Step 2.
Step 11: Final Confirmation Test
Confirm that the problem symptom has gone and the
engine is free from any abnormal conditions. If what has
been repaired is re lated to the DTC, clear the DTC once,
perform DTC confirmation procedure and confirm that no
DTC is indicated.
Malfunction Indicator Lamp (MIL) CheckS7RS0B1104002
1) Turn ON ignition switch (with engine at stop) and check that MIL (1) lights.
If MIL does not light up (or MIL dims) but engine can
be starting, go to “MIL Does Not Come ON with
Ignition Switch ON and Engine Stop (but Engine Can
Be Started)” for troubleshooting.
If MIL does not light with ignition switch ON and
engine does not start though it is cranked up, go to
“ECM Power and Ground Circuit Check”.
2) Start engine and check that MIL turns OFF. If MIL remains ON and no DTC is stored in ECM, go
to “Malfunction Indicator Lamp Remains ON after
Engine Starts” for troubleshooting.
1
I4RS0A110012-01

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DTC CheckS7RS0B1104003
NOTE
• There are two types of OBD system depending on the vehicle specification.
For details, refer to “Precaution on On-
Board Diagnostic (OBD) System”.
• The MIL is turned on when the ECM and/or TCM detect malfunction(s). Each ECM and
TCM stores diagnostic information as the
diagnostic trouble code (DTC) in its
memory and outputs th e DTC to the scan
tool.
Therefore, check both of the ECM and TCM
for any DTC with the SUZUKI scan tool
because the DTC stored in ECM and TCM
is not read and displayed at a time.
However, each of the ECM and TCM needs
not to be checked with the generic scan
tool because the DTC stored in ECM and
TCM is read and displayed at a time.

Using Scan Tool
1) Prepare OBD generic scan tool or SUZUKI scan tool.
2) With ignition switch turned OFF, connect it to DLC (1) located on underside of instrument panel at
driver’s seat side.
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch ON and confirm that MIL lights.
4) Read DTC, pending DTC and freeze frame data according to instructions displayed on scan tool and
print them or write them down. Refer to scan tool
operator’s manual for further details.
If communication between scan tool and ECM is not
possible, check if scan tool is communicable by
connecting it to ECM in another vehicle. If
communication is possible in this case, scan tool is
in good condition. Then check data link connector
and serial data line (circuit) in the vehicle with which
communication was not possible. If connector and
circuit are OK, check that power supply and ground
circuits of ECM and DLC are in good condition
referring to “ECM Power and Ground Circuit Check”. 5) After completing the check,
turn ignition switch OFF
and disconnect scan tool from data link connector.
Without Using Scan Tool (Hong Kong Model) 1) Turn ignition switch to OFF position.
2) Using service wire, ground diagnosis switch terminal (1) of diagnosis connector (2).
3) Turn ON ignition switch and check DTC displayed on
odometer (3) of combination meter.
When more than 2 DTCs are stored in memory,
blinking for each DTC star ts with the smallest DTC
number in increasing order. Also, DTC is indicated
repeatedly until the ignition switch is turned OFF or
disconnect service wire.
NOTE
When no DTC is detected, display on
odometer of combinatio n meter is “0000”.

4) After completing the check, turn ignition switch to
OFF position and disconnect service wire from
diagnosis connector.
(A)
1
I4RS0B110026-01
21
3
I5RS0C110009-01

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DTC ClearanceS7RS0B1104004
NOTE
There are two types of OBD system
depending on the vehicle specification.
For details, refer to “Precaution on On-Board
Diagnostic (OBD) System”.

Using Scan Tool1) Connect OBD generic scan to ol or SUZUKI scan tool
to data link connector in the same manner as when
making this connection for DTC check.
2) Turn ignition switch OFF and then ON.
3) Erase DTC and pending DTC according to instructions displayed on scan tool. Refer to scan
tool operator’s manual for further details.
4) After completing the clear ance, turn ignition switch
OFF and disconnect scan tool from data link
connector.
NOTE
DTC and freeze frame data stored in ECM
memory are also cleared in the following
cases. Be careful not to clear them before
keeping their record.
• When power to ECM is cut off (by disconnecting battery cable, removing
fuse or disconnecting ECM connectors).
• When the same malfunction (DTC) is not detected again during 40 engine warm-up
cycles. (See “Warm-Up Cycle” of “On-
Board Diagnostic System Description”.)

Without Using Scan Tool (Hong Kong Model)
1) Turn ignition switch to OFF position.
2) Disconnect battery negative cable for specified time below to erase diagnostic trouble code stored in
ECM memory and reconnect it.
Time required to erase DTC
DTC TableS7RS0B1104005
NOTE
• There are two types of OBD system depending on the vehicle specification.
• For details, refer to “Precaution on On-Board Diagnostic (OBD) System”.
• For non-Euro-OBD model, some of DTC No. with delta ( U) mark in the following table can not be
detected by ECM depending on vehicl e specification and local regulation.
• DTC with square ( †) mark in the following table can be detected only for Hong Kong model.
• DTC with circle ( {) mark in the following table can be detected only for Euro OBD model and Hong
Kong model.
• For Euro OBD model, with the generic scan tool, onl y star (*) marked DTC No. in the following table
can be read.
• 1 driving cycle: MIL lights up when DTC is detected during 1 driving cycle.
• 2 driving cycles: MIL lights up when the same DTC is detected also in the next driving cycle after DTC is detected and stored temporarily in the first driving cycle.
• *2 driving cycles: MIL blinks or lights up. Refer to “DTC P0300 / P0301 / P0302 / P0303 / P0304: Random / Multiple
Cylinder Misfire Detected / Cylinder 1 / Cylinder 2 / Cylinder 3 / Cylinder 4 Misfire Detected” for
details.

Ambient temperature Time to cut power to ECM
Over 0 °C (32 ° F) 30 sec. or longer
Under 0 °C (32 °F) Not specifiable.
Select a place with higher
than 0 °C (32 °F)
temperature.
DTC No. Detecting item Detecting condition
(DTC will set when detecting:) MIL
) *P0010 “A” camshaft position actuator
circuit Oil control valve circuit open or short. 1 driving
cycle
) *P0011 “A” camshaft position – timing
over-advanced or system
performance Actual value of advanced va
lve timing does not reach
target value, or valve timi ng is advanced although ECM
command is most retarding. 2 driving
cycles
) *P0012 “A” camshaft position – timing
over-retarded 2 driving
cycles

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Troubleshooting
NOTE
When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special
tool to ECM and/or the ECM connectors referri ng to “Inspection of ECM and Its Circuits”.

Malfunction Indicator Lamp Remains ON after Engine StartsS7RS0B1104012
Wiring Diagram and Circuit Description
Refer to “MIL Does Not Come ON wit h Ignition Switch ON and Engine Stop (but Engine Can Be Started)”.
Step
Action YesNo
1 MIL power supply check
1) Turn ignition switch to ON position.
Do other warning lights come ON? Go to Step 2.
Go to Step 3.
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch and check DTC.
Is there DTC(s) P1674, P1676, P1678 and/or P1685? Go to applicable DTC
diag. flow.
Substitute a known-
good combination meter
and recheck. If MIL still
remains OFF, substitute
a known-good ECM and
recheck.
3 CAN communication line circuit check
1) Check CAN communication circuit between combination
meter and ECM, TCM (A/T model) referring to Step 3 of
“DTC P1674: CAN Communication (Bus Off Error)”
Is circuit in good condition? Go to Step 4.
Repair or replace.
4 “METER” fuse check
1) Turn ignition switch to OFF position.
2) Check for fuse blown at “M ETER” fuse in junction block
assembly.
Is “METER” fuse in good condition? Go to Step 5.
Replace “METER” fuse
and check for short.
5 Combination meter power supply check
1) Remove combination meter referring to “Combination
Meter Removal and Installation in Section 9C”.
2) Check for proper connection to combination meter connector at “G28-31” and “G28-16” terminals.
3) If OK, then turn ignition switch to ON position and measure voltage between combination meter connector
at “G28-31” terminal and vehicle body ground.
Is it 10 – 14 V? Go to Step 6.
“RED/BLK” wire is open
circuit.
6 Combination meter circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between “G28-16” terminal of
combination meter connector and vehicle body ground.
Is resistance 1
Ω or less? Substitute a known-
good combination meter
and recheck. If MIL still
remains OFF, substitute
a known-good ECM and
recheck.
“BLK/ORN” wire is open
or high resistance
circuit.

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DTC Confirmation Procedure1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Make sure that all accessory switch is tuned OFF.
4) Start engine and warm it up to normal operating temperature (ECT approx. 90 – 95 °C, 193 – 203 °F).
5) Turn ON following accessory switch. • Head lights switch.
• Blower motor switch (max position).
• Rear defogger switch.
6) Increase engine speed to 4000 rpm and keep it for 10 sec. or more.
7) Decrease engine speed to idle.
8) Check DTC.
DTC Troubleshooting
NOTE
• When measuring circuit voltage, resistance and/ or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors re ferring to “Inspection of ECM and Its Circuits”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.

Step Action YesNo
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2.
Go to “Engine and
Emission Control
System Check”.
2 Generator control circuit check
1) Disconnect connector from generator and ECM with
ignition switch turned OFF.
2) Check for proper connection of wire terminal to generator connector and to ECM connector.
3) If connections are OK, check generator control (generator “C” terminal) circuit and field coil monitor
(generator “FR” terminal) circuit for the following.
• Resistance of each generato r control wire and field
coil monitor wire between generator connector and
ECM connector is less than 1 Ω (continuity check)
• Resistance between generator control wire and field coil monitor wire of generator connector is infinity
(insulation check)
• Resistance between each generator control wire and field coil monitor wire of generator connector and
vehicle body ground is infinity (ground circuit short
check)
• Voltage between each generator control wire and field
coil monitor wire of generator connector and vehicle
body ground is 0 V with ignition switch tuned ON
(power circuit short check)
Are they in good condition? Go to Step 3.
Repair or replace
defective wire.
3 Generator check
1) Check for generator output referring to “Generator Test
(Undercharged Battery Check) in Section 1J” and
“Generator Inspection in Section 1J”.
Is check result satisfactory? Substitute a known
good ECM and recheck.
Repair or replace
generator.