2006 DODGE RAM SRT-10 Service Repair Manual

Page 657 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual P0477-LOW VOLTAGE ON THE ENGINE BRAKE DRIVER
For a complete wiring diagramRefer to Section 8W.
When Monitored:
When the ignition is on.
Set Condition:
When the signal from the engine brake driver outp

Page 658 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual 4.FUSED B+ OPEN
Ignition on, engine not running.
Measure the voltage of the Fused B+ Supply circuit at the Engine Brake Relay.
Is the voltage within 10% of battery voltage?
Ye s>>
Go To 5
No>>
Repair

Page 659 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual P0478-HIGH VOLTAGE ON THE ENGINE BRAKE DRIVER
For a complete wiring diagramRefer to Section 8W.
When Monitored:
When the ignition is on.
Set Condition:
When the signal from the engine brake driver out

Page 660 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual 4.Engine brake relay
Measure the resistance between terminals 85 and 86 of the engine brake relay.
Is the resistance less than 10 ohms?
Ye s>>
Replace the engine brake relay.
Perform POWERTRAIN VERIFI

Page 661 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual P0480-FAN CLUTCH
For the Engine circuit diagram (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CON-
TROL MODULE - SCHEMATIC - ELECTRICAL)

Page 662 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual For a complete wiring diagramRefer to Section 8W.
When Monitored:
When the ignition is on.
Set Condition:
When the control coil is electrically shorted or open.
Possible Causes
FA N C L U TC H
WIRE HA

Page 663 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual 2.FA N C L U T C H
Disconnect the Fan Clutch harness connectors.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between the fan clutch (K160) driver circuit and
the fan clu

Page 664 of 5267

DODGE RAM SRT-10 2006  Service Repair Manual 4.(K160) DRIVER CIRCUIT SHORTED TO (K690) RETURN CIRCUIT
Measure the resistance between the fan clutch (K160) driver circuit and
the fan speed sensor (K690) return circuit at the sensor harness con-
n