ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-1
6-2
SECTION 6-2
ENGINE GENERAL INFORMATION
AND DIAGNOSIS
(M13 ENGINE)
CONTENTS
General Information....................................... 6-2-3
Statement on Cleanliness and Care ............ 6-2-3
Precaution .................................................... 6-2-4
Precaution on engine service................... 6-2-4
Precaution on fuel system service............ 6-2-4
Fuel pressure relief procedure ................. 6-2-5
Fuel leakage check procedure ................. 6-2-6
Diagnosis........................................................ 6-2-7
Engine Diagnosis General Description......... 6-2-7
On-Board Diagnostic System
Description ................................................... 6-2-7
Precaution in Diagnosing Trouble for
Engine ........................................................ 6-2-10
Engine and Emission Control System
Check ......................................................... 6-2-11
Customer Problem Inspection Form
(Example)................................................... 6-2-13
Malfunction Indicator Lamp (MIL)
Check ......................................................... 6-2-14
Diagnostic Trouble Code (DTC)
Check ......................................................... 6-2-14
Diagnostic Trouble Code (DTC)
Clearance................................................... 6-2-14
DTC Table.................................................. 6-2-16
Fail-Safe Table........................................... 6-2-19
Visual Inspection ........................................ 6-2-20
Engine Basic Inspection............................. 6-2-21
Engine Symptom Diagnosis....................... 6-2-23
Scan Tool Data .......................................... 6-2-31
Inspection of ECM and Its Circuits............. 6-2-36
Table A-1 Malfunction Indicator Lamp
Circuit Check – Lamp Does Not Come
“ON” with Ignition Switch ON
(But Engine Stops)..................................... 6-2-54
Table A-2 Malfunction Indicator Lamp
Circuit Check-lamp Remains “ON” after
Engine Starts ............................................. 6-2-56
Table A-3 ECM Power and Ground
Circuit Check-MIL Doesn’t Light with
Ignition Switch ON and Engine Doesn’t
Start Though It Is Cranked Up ................... 6-2-58
DTC P0010 Camshaft Position Actuator
Circuit......................................................... 6-2-61
DTC P0011 Camshaft Position –
Timing Over-Advanced or System
Performance .............................................. 6-2-64
DTC P0012 Camshaft Position –
Timing Over-Retarded ............................... 6-2-64
DTC P0102 Mass Air Flow Circuit Low
Input ........................................................... 6-2-66
DTC P0103 Mass Air Flow Circuit High
Input ........................................................... 6-2-69
DTC P0112 Intake Air Temperature
Sensor Circuit Low..................................... 6-2-71
WARNING:
For vehicles equipped with a Supplemental Restraint (Air Bag) System:
• Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in air bag system section in order to confirm whether you are performing ser-
vice on or near the air bag system components or wiring. Please observe all WARNINGS and “Ser-
vice Precautions” under “On-Vehicle Service” in air bag system section before performing service
on or around the air bag system components or wiring. Failure to follow WARNINGS could result in
unintentional activation of the system or could render the system inoperative. Either of these two
conditions may result in severe injury.
• Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
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