Dodge Ram Truck 1500-2500-3500. Manual — part 1059

P0206-INJECTOR #6 CONTROL CIRCUIT (CONTINUED)

5.

HIGH SIDE DRIVER HARNESS OPEN

Disconnect the ECM harness connectors.

Disconnect the Injector harness connector.

Check connectors - Clean/repair as necessary.

Measure the resistance of the Bank 2 high side driver circuit between
the ECM connector and the injector harness connector.

Is the resistance less than 10 Ohms?

Yes

>> Go To 6

No

>> Replace or repair the open engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

6.

LOW SIDE DRIVER HARNESS OPEN

Measure the resistance of the Bank 2 low side driver circuit between
the ECM connector and the injector harness connector.

Is the resistance less than 10 Ohms?

Yes

>> Test Complete.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

No

>> Replace or repair the open engine harness.

Perform POWERTRAIN VERIFICATION TEST VER - 1
(DIESEL). (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/ENGINE CONTROL MODULE - DIAG-
NOSIS AND TESTING)

9 - 1158

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

DR/DH

P0217-DECREASED ENGINE PERFORMANCE DUE TO ENGINE OVERHEAT
CONDITION

DR/DH

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

9 - 1159

P0217-DECREASED ENGINE PERFORMANCE DUE TO ENGINE OVERHEAT CONDITION (CONTINUED)

For the Engine circuit diagram (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CON-
TROL MODULE - SCHEMATIC - ELECTRICAL)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
While the engine is running. .

•

Set Condition:
The engine coolant temperature is above a calibrated value for a calibrated amount of time.

Possible Causes

ECT SENSOR

OTHER DTC’S

MECHANICAL FAILURE

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Diagnostic Test

1.

OTHER DTC’S

With the scan tool, read DTCs.

Are other Cooling system DTC’s present?

Yes

>> Trouble shoot the 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.

ECT SENSOR

Allow the engine to reach normal operating temperature.

Use a temperature probe and measure the engine temperature near the ECT Sensor.

With the scan tool, read the Engine Temperature.

Compare the temperature probe reading with the scan tool reading.

Are the readings within 10°F of each other?

Yes

>> Repair the cause of mechanical failure.

Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

No

>> Replace the coolant temp sensor.

Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 8 - ELECTRICAL/ELEC-
TRONIC CONTROL MODULES/ENGINE CONTROL MODULE - DIAGNOSIS AND TESTING)

9 - 1160

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

DR/DH

P0219-CRANKSHAFT POSITION SENSOR OVER SPEED SIGNAL

DR/DH

ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL

9 - 1161