Isuzu BIGHORN OBD 1  Manual Diagnostic Guide

isuzu obd1

Isuzu BIGHORN OBD 1  Manual Diagnostic Guide

The Isuzu Bighorn is a mid-size SUV that was produced by the Japanese automaker Isuzu between 1981 and 2002 and exported internationally as the Isuzu TrooperIsuzu Trooper IICaribe 442Acura SLXChevrolet TrooperSubaru BighornSsangYong Korando FamilyHonda HorizonOpel/Vauxhall MontereyHolden Jackaroo/Montereyand HSV Jackaroo.

In total, there were two generations of this vehicle: the first, produced between 1981 and 1991; and the second (UBS) produced between 1991 and 2002, with a substantial refresh in 1998. Production ended in 2002.

The Bighorn began as a rather basic and somewhat underpowered on- and off-road vehicle, offered only with four-cylinder motor, four-speed manual transmission, and part-time four-wheel drive. The first generation evolved to add both amenities and luxuries, including optional air-conditioning, power windows, and a more powerful V6 engine. The second generation was even more refined and available in two-wheel drive as well as four-wheel drive.

READING TROUBLE CODE INSTRUCTION

Code Format DescriptionThe fault code will be in one of the following Code Formats below.• Each code is made up of two series of flashes.• The first series indicates the 'tens' digit.• The second series indicates the 'ones' digit.• A long pause separates each code.• A shorter pause separates the 'tens' and 'ones'.• Upper Code Format Diagram shows code No. 32 in this format.Or...• Each code is made up of two series of flashes.• The long flashes indicate the 'tens' digits.• The short flashes indicate the 'ones' digits.• A long pause separates each code.• Lower Code Format Diagram shows code No. 12 in this format.• *The first code "flashed out" is always code 12.• *If Code 12 repeats at least 4 times in a row there are No Codes in memory.• *Codes repeat 3 times each, then the next code repeats 3 times...

PLEASE FOLLOW THE JUMPER SETTING ABOVE:

INSTRUCTION:

1. If possible run the engine to bring the oxygen sensor up to operating temperature then switch the engine off.
2. Connect the terminals using your own jumper wire, as shown in the diagram above.
3. Turn ignition ON, the Check Engine Light (CEL) should be flashing on your car dashboard

PLEASE FOLLOW THE JUMPER SETTING ABOVE: INSTRUCTION: 1. If possible run the engine to bring the oxygen sensor up to operating temperature then switch the engine off. 2. Connect the terminals using your own jumper wire, as shown in the diagram above. 3. Turn ignition ON, the Check Engine Light (CEL) should be flashing on your car dashboard.
4 Read codes as described in the Code Format Description below.
Code Format Diagram

4 Read codes as described in the Code Format Description below. Code Format Diagram 32 code

READING CODE INSTRUCTION
The fault code will be in one of the following Code Formats above.
• Each code is made up of two series of flashes.
• The first series indicates the ‘tens’ digit.
• The second series indicates the ‘ones’ digit.
• A long pause separates each code.
• A shorter pause separates the ‘tens’ and ‘ones’.
• Upper Code Format Diagram shows code No. 32 in this format.
OTHER INSTRUCTION
READING CODE INSTRUCTION The fault code will be in one of the following Code Formats above. • Each code is made up of two series of flashes. • The first series indicates the 'tens' digit. • The second series indicates the 'ones' digit. • A long pause separates each code. • A shorter pause separates the 'tens' and 'ones'. • Upper Code Format Diagram shows code No. 32 in this format. OTHER INSTRUCTION 12 code

• Each code is made up of two series of flashes.
• The long flashes indicate the ‘tens’ digits.
• The short flashes indicate the ‘ones‘ digits.
• A long pause separates each code.
• Lower Code Format Diagram shows code No. 12 in this format.

Please remember the pattern of codes.
• *The first code “flashed out” is always code 12.
• *If Code 12 repeats at least 4 times in a row there are No Codes in memory.
• *Codes repeat 3 times each, then the next code repeats 3 times…

Related Topics  OBD HACK- Diagnose your Honda OBD even without the diagnostic scanner

 

ERASING CODE INSTRUCTION

  • Ensure ignition switched OFF.
  • Disconnect engine control module (ECM) harness multi-plugs for 30 seconds.
  • Reconnect multi-plugs.
  • Repeat checking procedure to ensure no data remains in ECM fault memory.
  • Engine control module (ECM) location:

LIST OF TROUBLE CODE

Flash code Fault location Probable cause
12 Normal condition
13 Heated oxygen sensor (H02S)- short/open circuit Wiring, H025/025
14 Engine coolant temperature (ECT) sensor Wiring, ECT sensor
21 Throttle position (TP) sensor – signal voltage Wiring, TP sensor, mechanical fault, ECM
23 Intake air temperature (IAT) sensor Wiring, IAT sensor
24 Vehicle speed sensor (VSS) – circuit Wiring, VSS, mechanical fault, ECM
32 Exhaust gas recirculation (EGR) system Wiring, EGR valve, mechanical fault, ECM
33 Manifold absolute pressure (MAP) sensor – signal Wiring, MAP sensor, mechanical fault, ECM
42 Ignition control signal Wiring, ignition control module (ICM), ECM
43 Knock sensor (KS) ‘ Wiring, KS, mechanical fault, ECM
44 Heated oxygen sensor (H02S)/oxygen -sensor (02S) – signal – mixture lean Wiring, H02S/02S, mechanical fault, fuel system, fuel pressure, ECM
45 Heated oxygen sensor (H02S)/oxygen sensor   (028) – signal – mixture rich Wiring, H02S/02S, mechanical fault, fuel system, fuel pressure, ECM
51 Engine control module (ECM) – memory Wiring, ECM

 

NOTE:

Codes being displayed will differ from model to model. Sometimes, there are more codes than shown above. If not on the list, please check your service manual or contact ATS.
To prevent replacing unnecessary parts, do not replace any part until you verify the circuit or sensor or contact ATS for assistance.

 

 

Isuzu BIGHORN OBD 1  Manual Diagnostic Guide

OBD 1 Isuzu Rodeo Bighorn,OBD 1 Holden Jackaroo,OBD 1 Chevrolet Stallion ,OBD 1 Chevrolet Trooper,OBD 1 SsangYong Korando Family,OBD 1 Subaru Bighorn,OBD 1 Isuzu Caribe 442

Leave a Reply

Your email address will not be published. Required fields are marked *