2007 ISUZU KB P190 DTC CHECK

6 – 18 TROUBLESHOOTING
14-5 Charging System Noise Step Action Value(s) Yes No
1 Was “Visual/Physical Check" performed.
—

Go to Step 2 Go to
visual/physical check
2 Was there intermittent noise or continuous noise and
that could be identified clearly by increasing and
decreasing engine speed? —

Replace the bearing. Go to Step 3
3 Was there a growling sound and does this sound
stop when the connector was disconnected? —
Replace the
stator coil. Go to Step 4
4 Was intermittent sound heard when the generator
was running? —
Replace the
brush and/or slip ring. Go to Step 5
5 Was frictional sound heard when generator was
running? —
Clean the slip
ring or replace the brush. Go to Step 6
6 Are any DTC stored? — Go to indicated
DTC. Solved


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

TROUBLESHOOTING 6 – 19
15. Starter Motor Problem
Visual/physical check the following items before diagnosis.
The battery terminals connection condition.
The ground connection condition.
The starter motor or the battery fastener condition.
The battery fluid level and specific gravity.
15-1 Starter motor pinion engages to ring gear but engine does not turn over
Step Action Value(s) Yes No
1 Was “Visual/Physical Check" performed.
—

Go to Step 2 Go to
visual/physical check
2 Check the contact condition between the brush and
the commutator.
Was the brush and the commutator contact
intermittent? —
Replace the
brush or repair the
commutator. Go to Step 3
3 Were the brush and the commutator contact faces
dirty?
—

Clean contact face Go to Step 4
4 Was the pinion clutch slipped? — Replace the
pinion clutch Go to Step 5
5 Inspect the armature field coil.
Was there an open circuit or a short circuit in the
armature field coil? —
Repair or
replace the
armature field coil. Go to Step 6
6 Are any DTC stored? — Go to indicated
DTC. Solved

15-2 Incorrect pinion and ring gear engagement
Step Action Value(s) Yes No
1 Was “Visual/Physical Check" performed.
—

Go to Step 2 Go to
visual/physical check
2 Inspect the pinion and the ring gear teeth.
Were the pinion and/or the ring gear teeth worn or
broken? —

Replace the wron parts. Go to Step 3
3 Inspect the pinion gear return movement.
Was the pinion gear return movement incorrect? —
Adjust or
replace the movement parts. Go to Step 4
4 Are any DTC stored? — Go to indicated
DTC. Solved


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6 – 20 TROUBLESHOOTING
15-3 Starter motor continues to run after the starter switch is turned off
Step Action Value(s) Yes No
1 Was “Visual/Physical Check" performed.
—

Go to Step 2 Go to
visual/physical check
2 Inspect the magnetic switch contact point.
Was the contact point seized? —
Repair or
replace the magnetic switch. Go to Step 3
3 Inspect the starter switch.
Was the starter switch defective? —
Replace the
starter switch. Go to Step 4
4 Are any DTC stored? — Go to indicated
DTC. Solved

15-4 Excessive commutator sparking
Step Action Value(s) Yes No
1 Was “Visual/Physical Check" performed.
—

Go to Step 2 Go to
visual/physical check
2 Inspect the contact condition between the brush and
the commutator.
Was the brush and the commutator contact
intermittent? —
Replace the
brush or repair the
commutator. Go to Step 3
3 Was there the slag accumulation on the contact
face? —
Clean the
contact face or replace the brush. Go to Step 4
4 Was the brush holder loose? — Repair the
brush holder Go to Step 5
5 Inspect the commutator.
Was there excessive wear or pitting? —
Repair or
replace the
commutator. Go to Step 6
6 Was there loose the solder on the commutator? — Clean and
repair Go to Step 7
7 Inspect the armature shaft.
Was the run-out of armature shaft outside the
standard value due to worn bearing ? —

Replace the bearing Go to Step 8
8 Are any DTC stored? — Go to indicated
DTC. Solved




BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6A – 26 ENGINE MECHANICAL



041RY00011
Draining Procedure
The indicator light will come on when the water level in the
water separator exceeds the specified level.
Drain the water and foreign material from the water
separator (inside chassis frame) with the following
procedure.





1. Place the drain pan under the drain plug.
2. Loosen the drain plug and drain water.
3. After draining the water, tighten the drain plug.
4. Operate the priming pump on the fuel filter several times and check for fuel leakage.
5. Check the water separator indicator light. It should be off.



Except EURO III model
RTW 46ASH002901




For EURO III model
RTW 46ASH000501


Air Bleeding
1. Operate the priming pump until strong resistance is felt.
2. W ait 1 minute, and operate the priming pump until strong resistance is felt.
3. Once more wait, and operate the priming pump until strong resistance is felt.
4. Turn the ignition switch to the "ON" position. W ait until the glow indicator lamp turns off.
5. Turn the ignition switch to the "START" position and crank the engine until it starts.
6. If the engine does not start, repeat Step 3 - 5.
7. Allow the engine to idle for 3 minutes to bleed air completely form the fuel system and check for fuel
leakage.
Note:
Insufficient air bleeding may cause the Diagnostic
Trouble Code (DTC) store or improper engine
performance.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Control System (4JH1) 6E-1
SECTION 6E
ENGINE CONTROL SYSTEM (4JH1)
TABLE OF CONTENTS


Specifications ..................................................... 6E-4
Schematic And Routing Diagrams ..................... 6E-5 Vacuum Hose Routing Diagram...................... 6E-5
Engine Controls Schematics ........................... 6E-7
Component Locator ............................................ 6E-18 Engine Controls Component Views ................ 6E-18
Engine Control Module (ECM) Connector
End Views ...................................................... 6E-22
Engine Control Connector End Views ............. 6E-25
Diagnostic Information And Prosedures............. 6E-30 Engine Control System Check Sheet .............. 6E-30
Diagnostic Starting Point - Engine Controls .... 6E-31
Breaker Box .................................................... 6E-32
Diagnostic System Check - Engine Controls .. 6E-33
Scan Tool Data List ......................................... 6E-36
Scan Tool Data Definitions.............................. 6E-37
Scan Tool Output Controls .............................. 6E-40
Scan Tool Does Not Power Up ....................... 6E-41
Scan Tool Does Not Communicate with Keyword
2000 Device ................................................... 6E-42
Lost Communication with The Engine Control
Module (ECM) ............................................... 6E-44
Engine Cranks but Does Not Run ................... 6E-47
Diagnostic Trouble Code (DTC) List ............... 6E-50
DTC P0100 (Symptom Code 7)
(Flash Code 65) ............................................. 6E-66
DTC P0100 (Symptom Code 9)
(Flash Code 65) ............................................ 6E-68
DTC P0100 (Symptom Code B)
(Flash Code 65) ............................................ 6E-70
DTC P0100 (Symptom Code C)
(Flash Code 65) ............................................ 6E-73
DTC P0105 (Symptom Code 1)
(Flash Code 34) ............................................ 6E-75
DTC P0105 (Symptom Code 2)
(Flash Code 34) ............................................ 6E-78
DTC P0105 (Symptom Code 7)
(Flash Code 34) ............................................ 6E-81
DTC P0105 (Symptom Code 9)
(Flash Code 34) ............................................ 6E-83
DTC P0110 (Symptom Code 1)
(Flash Code 23) ............................................ 6E-85
DTC P0110 (Symptom Code 2)
(Flash Code 23) ............................................ 6E-88
DTC P0115 (Symptom Code 1)
(Flash Code 14) ............................................ 6E-90
DTC P0115 (Symptom Code 2)
(Flash Code 14) ............................................ 6E-93
DTC P0180 (Symptom Code B)
(Flash Code 15) ............................................ 6E-95
DTC P0215 (Symptom Code A)
(Flash Code 52............................................... 6E-96
DTC P0215 (Symptom Code B)
(Flash Code 52) ............................................ 6E-98
DTC P0215 (Symptom Code C)
(Flash Code 52) ............................................ 6E-100
DTC P0215 (Symptom Code D)
(Flash Code 52) ............................................ 6E-102
DTC P0216 (Symptom Code A,B)
(Flash Code 54) ............................................ 6E-103
DTC P0243 (Symptom Code 3)
(Flash Code 64) ............................................ 6E-107
DTC P0243 (Symptom Code 4)
(Flash Code 64) ............................................ 6E-111
DTC P0243 (Symptom Code 5)
(Flash Code 64) ............................................. 6E-114
DTC P0243 (Symptom Code 6)
(Flash Code 64) ............................................. 6E-118
DTC P0243 (Symptom Code 8)
(Flash Code 65) ............................................. 6E-121
DTC P0251 (Symptom Code 6)
(Flash Code 53) ............................................ 6E-123
DTC P0251 (Symptom Code 7)
(Flash Code 53) ............................................ 6E-125
DTC P0251 (Symptom Code 9, A, B, C)
(Flash Code 53) ............................................ 6E-127
DTC P0251 (Symptom Code E)
(Flash Code 53) ............................................ 6E-129
DTC P0335 (Symptom Code B, D)
(Flash Code 43) ............................................ 6E-130
DTC P0335 (Symptom Code E)
(Flash Code 43) ............................................. 6E-134
DTC P0380 (Symptom Code 4)
(Flash Code 66) ............................................ 6E-136

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6E-2 Engine Control System (4JH1)
DTC P0380 (Symptom Code 8)
(Flash Code 66) ............................................6E-139
DTC P0381 (Symptom Code 4)
(Flash Code 67) ............................................6E-141
DTC P0381 (Symptom Code 8)
(Flash Code 67) ............................................6E-144
DTC P0400 (Symptom Code 3)
(Flash Code 32) ............................................6E-146
DTC P0400 (Symptom Code 4)
(Flash Code 32) ............................................6E-149
DTC P0400 (Symptom Code 5)
(Flash Code 32) ............................................6E-152
DTC P0400 (Symptom Code 8)
(Flash Code 32) ............................................6E-155
DTC P0500 (Symptom Code 1, A)
(Flash Code 24) ............................................6E-157
DTC P0500 (Symptom Code B)
(Flash Code 24) ............................................6E-160
DTC P0560 (Symptom Code 1)
(Flash Code 35) ............................................6E-166
DTC P0560 (Symptom Code 2)
(Flash Code 35) ............................................6E-167
DTC P0560 (Symptom Code A)
(Flash Code 35) ............................................6E-169
DTC P0561 (Symptom Code A)
(Flash Code 18) ............................................6E-171
DTC P0561 (Symptom Code B)
(Flash Code 18) ............................................6E-173
DTC P0602 .....................................................6E-174
DTC P0606 (Symptom Code A, B)
(Flash Code 28) ............................................6E-175
DTC P0645 (Symptom Code 4)
(Flash Code 46) ............................................6E-176
DTC P0645 (Symptom Code 8)
(Flash Code 46) ............................................6E-179
DTC P0703 (Symptom Code A, B)
(Flash Code 25) ............................................6E-181
DTC P0704 (Symptom Code 6)
(Flash Code 57) ............................................6E-185
DTC P1105 (Symptom Code 1)
(Flash Code 86) ............................................6E-188
DTC P1105 (Symptom Code 2)
(Flash Code 86) ............................................6E-189
DTC P1120 (Symptom Code 1)
(Flash Code 21) ............................................6E-190
DTC P1120 (Symptom Code 7)
(Flash Code 21) ............................................6E-193
DTC P1120 (Symptom Code 9)
(Flash Code 21) ............................................6E-195
DTC P1120 (Symptom Code D)
(Flash Code 21) ............................................ 6E-197
DTC P1120 (Symptom Code E)
(Flash Code 21) ............................................ 6E-200
DTC P1173 (Symptom Code 3)
(Flash Code 22) ............................................ 6E-204
DTC P1173 (Symptom Code 7, A)
(Flash Code 22) ............................................ 6E-206
DTC P1335 (Symptom Code A)
(Flash Code 43) ............................................ 6E-207
DTC P1345 (Symptom Code A)
(Flash Code 41) ............................................ 6E-209
DTC P1520 (Symptom Code A)
(Flash Code 47) ............................................ 6E-210
DTC P1520 (Symptom Code B)
(Flash Code 47) ............................................ 6E-213
DTC P1605 (Symptom Code C, D, E)
(Flash Code 55) ............................................ 6E-216
DTC P1610 (Symptom Code A)
(Flash Code 56) ............................................ 6E-217
DTC P1611 (Symptom Code A)
(Flash Code 56) ............................................ 6E-218
DTC P1612 (Symptom Code A)
(Flash Code 56) ............................................ 6E-219
DTC P1613 (Symptom Code A)
(Flash Code 56) ............................................ 6E-220
DTC P1614 (Symptom Code A)
(Flash Code 56) ............................................ 6E-221
DTC P1625 (Symptom Code A)
(Flash Code 76) ............................................ 6E-222
DTC P1625 (Symptom Code B)
(Flash Code 76) ............................................ 6E-224
DTC P1630 (Symptom Code A, B)
(Flash Code 51) ............................................ 6E-226
DTC P1650 (Symptom Code A)
(Flash Code 44) ............................................ 6E-227
DTC P1650 (Symptom Code B)
(Flash Code 44) ............................................ 6E-230
DTC P1651 (Symptom Code A, B)
(Flash Code 45) ............................................ 6E-231
DTC P1690 (Symptom Code 4)
(Flash Code 77) ............................................ 6E-234
DTC P1690 (Symptom Code 8)
(Flash Code 77) ............................................ 6E-237
Glow Control System Check ........................... 6E-239
A/C Compressor System Check ..................... 6E-242
Symptoms - Engine Controls ............................. 6E-255 Symptoms - Engine Controls .......................... 6E-255
Intermittent Conditions .................................... 6E-256
Hard Start ........................................................ 6E-258

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6E-30 Engine Control System (4JH1)
Diagnostic Information And Prosedures
Engine Control System Check Sheet





ENGINE CONTROL SYSTEM CHECK SHEET Inspectors Name
Customer’s Name Model & Model Year
Driver’s Name Chassis No.
Date Vehicle Brought In Engine No.
License No. Odometer Reading Km/miles

□ Engine Does
Not Run □
Engine does not crank
□No initial combustion
□ No complete combustion
□
Hard Start
□ Engine cranks slowly
□Other ( )
□
Abnormal idling speed
□High idling speed ( RPM)
□ Low idling speed ( RPM)
□
Rough idling □
Incorrect Idle
□ Other ( )
□
Hesitation, sag, stumble
□Surge, chuggles
□ Cut out, misses
□
Lack of power, sluggishness, sponginess □
Poor
Driveability □ Other ( )

□ Soon after starting
□After accelerator pedal depressed
Engine Stall
□ During A/C operation
□After accelerator pedal released
□ Shifting from N to D □

□ Other ( )
□
Black smoke
□White smoke
□ Poor fuel economy
□
Fuel knock, combustion noise
Problem Symptoms
□
Others
□ Other ( )
Dates problem occurred
□
Constant
□Intermittently ( times per day/month)
□ Once only Problem frequency
□ Other (
)
□ Fine
□Cloudy
□Rainy
□ Snow Weather
□ Various/Other (
)
□ Hot (approx. )
□Warm
□Cool
□ Cold (approx. )Outside
Temperature □ Any temperature
□
Highway
□Suburbs
□City area
□ Uphill Place
□ Downhill
□Rough road
□Other (
)
□ Over (approx. tons)
□No load
Load Condition
□ Other (approx. tons)

□ Cold
□Warming up
□After warming up
□ Any temperature Engine
Temperature □ Other ( )
□
Starting
□Just after starting ( Min.)
□ Idling
□
Racing
□Driving
□Constant speed
□ Acceleration
□
Deceleration
□A/C switch On/Off Engine Operation
□ Other ( )
Fuel Amount
□ Full
□Above 1/2
□Below 1/2
□ Near empty
Condition When Problem Occurs
Fuel
Bland
Condition of MIL
□Remains On
□Intermittently turns On
□ Does not turn On
Present Code
□Nothing
□P Code & Symptom Code
No. ( )Diagnostic Trouble
Code (DTC) or Flash
Code History Code □Nothing
□P Code & Symptom Code
No. ( )

Other Additional
Condition


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Engine Control System (4JH1) 6E-31
Diagnostic Starting Point - Engine Controls
Begin the system diagnosis with Diagnostic System
Check - Engine Controls. The Diagnostic System Check
- Engine Controls will provide the following information:
• The identification of the control modules which
command the system.
• The ability of the control modules to communicate
through the serial data circuit.
• The identification of any stored diagnostic trouble
codes (DTCs) and the their statuses.
The use of the Diagnostic System Check - Engine
Controls will identify the correct procedure fo
r
diagnosing the system and where the procedure is
located.
Important:
Engine Control System Check Sheet must be used to
verify the complaint vehicle, you need to know the
correct (normal) operating behavior of the system and
verify that the customer complaint is a valid failure o
f
the system.

Reading Flash Diagnostic Trouble Codes
The provision for communicating with the ECM is the
Data Link Connector (DLC). The DTCs stored in the
ECM memory can be read either through a hand-held
diagnostic scanner such as scan tool plugged into the
DLC or by counting the number of flashes of the MIL
when the diagnostic test terminal of the DLC is
grounded. The DLC terminal “6” (diagnostic request
switch) is pulled “Low” (grounded) by jumped to DLC
terminal “4”, which is a ground wire.
Once terminals “4” and “6” have been connected, the
ignition switch must be moved to the “ON” position, with
the engine not running. The MIL will initially flash 12.
Then, the MIL will flash the first stored DTC three times,
second stored DTC three times and so on. All the
stored DTCs are flashed, then return 12 and continue to
flash the DTC. If no DTC exists, the MIL flashes 12
continuously. The flash DTC display will continue as
long as the DLC is shorted.









RTW 66ESF000501

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007