Page 838 of 5267
P2146-BANK 1 (CYLINDERS 1-3) SHORTED HIGH OR LOW
For a complete wiring diagramRefer to Section 8W.
Page 846 of 5267
P2149-BANK 2 (CYLINDERS 4-6) SHORTED HIGH OR LOW
For a complete wiring diagramRefer to Section 8W.
Page 853 of 5267
P2266-WATER IN FUEL (WIF) SENSOR VOLTAGE TOO LOW
For a complete wiring diagramRefer to Section 8W.
Page 856 of 5267
P2269-WATER IN FUEL (WIF)
For a complete wiring diagramRefer to Section 8W.
Page 858 of 5267
P2502-CHARGING SYSTEM ERROR
For a complete wiring diagramRefer to Section 8W.
Page 861 of 5267
P2503-CHARGING SYSTEM OUTPUT LOW
For a complete wiring diagramRefer to Section 8W.
Page 864 of 5267
P2504-CHARGING SYSTEM OUTPUT HIGH
For a complete wiring diagramRefer to Section 8W.
Page 865 of 5267
When Monitored:
While the engine is running.
Set Condition:
Battery voltage is less than 11.5 volts for more than 8 seconds. Battery voltage must exceed 12 volts for more
than 5 seconds for fault to become inactive.
Possible Causes
OTHER DTC’S PRESENT
DIRTY OR LOOSE CONNECTIONS
ADD-ON OR ACCESSORY WIRES AT BATTERY TERMINAL
HIGH RESISTANCE IN THE B+ CIRCUIT
HIGH RESISTANCE IN THE B+ CROSS OVER CABLE
HIGH RESISTANCE IN THE GROUND CIRCUIT
GENERATOR
ECM
INTERMITTENT CONDITION
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.OTHER DTC’S PRESENT
With the scan tool, read DTCs.
Is DTC P2502 set?
Ye s>>
Repair other DTC’s first.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 2
2.DIRTY OR LOOSE CONNECTIONS
Visually inspect the positive and negative connections at the battery.
Visually inspect the battery negative connections at the engine block.
Are the connections free of corrosion and are they tight?
Ye s>>
Go To 3
No>>
Clean and/or tighten the connections.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
3.ADD-ON OR ACCESSORY WIRES AT BATTERY TERMINAL
Check for add-on or accessory wiring at positive (+) terminal of the battery.
Are there any damaged wires at the battery?
Ye s>>
Remove defective or miss wired add-on or accessory wiring from battery.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)
No>>
Go To 4
