2007 ISUZU KB P190 indicator

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Page 3284 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–6 
 
• Use Tech 2 to clear DTC/s. 
Type C – Non-Emission Related DTCs 
The ECM takes the following action when a Type A DTC runs and fails:

Page 3293 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–15 
 
C-56–28    Not Used 
C-56–29  V HI_SIG_3  B1S2 O2 Sensor High Signal (Bank 1 Sensor 2) 
C-56–30    Not  Used 
C-56–31 R/W  CRANK_REQ

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ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–23 
 
• there is no Current DTC but a History DTC is stored. 
Diagnostic Table  
Checks Actions 
Preliminary 
• Perform the preliminary checks

Page 3334 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–56 
 
DTC Description Diagnostic Table 
P0522  Oil Pressure Sensor Voltage Low  7.31  DTC P0521, P0522 or P0523 
P0523  Oil Pressure Sensor Voltag

Page 3366 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–88 
 
• DTC P0153 – HO2S Circuit Slow Response – Bank 2 Sensor 1 
Circuit Description 
The wide band heated oxygen sensor (HO2S) measures th

Page 3370 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–92 
 
P0340, P0341, P0345, P0346, P0351-P0358, P0365, P0366, P0390, P0391, P0442, P0443, P0446, P0449,  
P0453, P0454, P0455, P0458, P0459, and P0

Page 3380 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–102 
 
3-way catalytic converter damage. The malfunction indicator lamp (MIL) will flash ON and OFF when the conditions for  
catalytic converter

Page 3383 of 6020

ISUZU KB P190 2007  Workshop Repair Manual Engine Management – V6 – Diagnostics Page 6C1-2–105 
 
Circuit Description 
The engine control module (ECM) uses information from the crankshaft position (CKP) sensor and the camshaft position