6
ENGINE GENERAL INFORMATION AND DIAGNOSIS (RHZ ENGINE WITH SINGLE-CONNECTOR ECM)
6-1
GENERAL INFORMATION
6-
3
. . . . . . . . . . . . . .
ENGINE DIAGNOSIS
6-
6
. . . . . . . . . . . . . . . . . . .
General Description
6-
6
. . . . . . . . . . . . . . . . . . . .
On-Board Diagnostic System
6-
6
. . . . . . . . . . . .
Precaution in Diagnosing Trouble
6-
9
. . . . . . . . .
Engine Diagnostic Flow Table
6- 10
. . . . . . . . . . . .
Customer Problem Inspection Form
6- 12
. . . . .
Malfunction Indicator Lamp
(MIL) Check
6- 13
. . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC)
Check
6- 13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC)
Clearance
6- 13
. . . . . . . . . . . . . . . . . . . . . . . . . .
Fail-Safe Table
6- 14
. . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC) Table
6- 15
. . .
Visual Inspection
6- 18
. . . . . . . . . . . . . . . . . . . . .
Engine Basic Check
6- 19
. . . . . . . . . . . . . . . . . .
Engine Diagnosis Table
6- 20
. . . . . . . . . . . . . . .
Inspection of PCM (ECM) and Its
Circuits
6- 25
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Check
6- 25
. . . . . . . . . . . . . . . . . . . . .
Resistance Check
6- 27
. . . . . . . . . . . . . . . . . .
Table A-1 MIL Circuit Check
(MIL does not come ON)
6- 28
. . . . . . . . . . . . .
Table A-2 MIL Circuit Check
(MIL remains ON)
6- 29
. . . . . . . . . . . . . . . . . . .
Table A-3 ECM (PCM) Power and
Ground Circuit Check
6- 29
. . . . . . . . . . . . . . . .
DTC P0100 (DTC P0100) MAF
Circuit Malfunction
6- 31
. . . . . . . . . . . . . . . . . . .
DTC P0101 (P0100) MAF Sensor
Circuit Range / Performance
Problem
6- 33
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0110 IAT Circuit Malfunction
6- 34
. . . . .
DTC P0115 (DTC P0115) Engine
Coolant Temp. Sensor Circuit
Malfunction
6- 36
. . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0121 (DTC P0120) TP
Circuit Range / Performance
Problem
6- 37
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0604 (P0120) TP Sensor
Monitoring System Malfunction
6- 37
. . . . . . . .
DTC P0180 Fuel Temp. Sensor Circuit
Malfunction
6- 39
. . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0190 (P0190) Fuel Rail Pressure
Sensor Circuit Malfunction
6- 40
. . . . . . . . . . . .
DTC P0191 (P0230) Fuel Rail
Pressure Sensor / Pressure Regulator
Consistency Function
6- 42
. . . . . . . . . . . . . . . .
SECTION 6
ENGINE GENERAL INFORMATION AND
DIAGNOSIS
(RHZ ENGINE WITH SINGLE-CONNECTOR ECM)
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
D
Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “Gener-
al Description” in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” 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.
D
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).
CONTENTS
