Circuit ISUZU KB P190 2007 Workshop Repair Manual

ISUZU KB P190 2007 Workshop Repair Manual KB P190 2007 ISUZU ISUZU https://www.carmanualsonline.info/img/61/57177/w960_57177-0.png ISUZU KB P190 2007 Workshop Repair Manual

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–203 
 
DTC P2196 or P2198 Diagnostic Table 
Step Action  Value(s) Yes No 
1 
Has the Diagnostic System Check been completed?  — 
Go to Step 2  R

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–204 
 
9 1  Shake the related HO2S harnesses for the rear 
sensor between the HO2S harness connector  
and the ECM while monitoring the appropriat

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–205 
 
17 1  Replace the HO2S 2. Refer to the Oxygen 
Sensor 2 procedure, in 6C1- Engine  
Management – V6 Service Operations. 
Did you complete

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–206 
 
• The engine is running. 
Conditions for Setting the DTC 
DTC P2227 
The ECM detects the BARO pressure changed greater than 5 kPa within

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–207 
 
Step Action  Yes 
No 
3 1  Switch off the ignition.  
2  Disconnect the BARO sensor wiring connector. 
3  Switch on the ignition with the e

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–208 
 
Step Action  Yes 
No 
11 1  Using Tech 2, clear the DTCs.  
2  Switch off the ignition for 30 seconds. 
3  Start the engine. 
4  Operate th

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–210 
 
• The internal HO2S signal voltage switches at the same rate as the heater circuit. 
•  The above condition occurs 4 times out of 6 as

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–211 
 
Step Action  Yes No 
4 1  Disconnect the ECM and the appropriate HO2S connector.  
2  From the HO2S wiring connector to the ECM wiring conn

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–212 
 
• If the air / fuel mixture in the exhaust is balanced (lambda = 1), the oxygen pumping cell current is zero. 
•  If the exhaust gas in

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–213 
 
Conditions for Clearing the DTC 
The HO2S pumping current control circuit DTCs are Type ‘B’ DTCs. Refer to 1.4  Diagnostic Trouble Code