Dodge Ram Truck 1500-2500-3500. Manual — part 1031
P0462-LOW VOLTAGE DETECTED AT THE
FUEL LEVEL SENSOR . . . . . . . . . . . . . . . . 1255
P0463-HIGH VOLTAGE DETECTED AT THE
FUEL LEVEL SENSOR . . . . . . . . . . . . . . . . 1259
P0477-LOW VOLTAGE ON THE ENGINE
BRAKE DRIVER . . . . . . . . . . . . . . . . . . . . . 1262
P0478-HIGH VOLTAGE ON THE ENGINE
BRAKE DRIVER . . . . . . . . . . . . . . . . . . . . . 1265
. . . . . . . . . . . . . . . . . 1267
. . . . . . . . . . . . . . . . . . 1272
SIGNAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 1280
RATIONALITY . . . . . . . . . . . . . . . . . . . . . . 1284
P0516-LOW VOLTAGE AT THE BAT TEMP
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . 1286
P0517-HIGH VOLTAGE AT THE BAT TEMP
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . 1290
RATIONALITY . . . . . . . . . . . . . . . . . . . . . . 1295
P0532-A/C SENDING UNIT VOLTS TOO
LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1301
P0533-A/C SENDING UNIT VOLTS TOO
HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1308
P0541-LOW VOLTAGE ON THE #1 INTAKE
AIR HEATER RELAY . . . . . . . . . . . . . . . . . 1313
P0542-HIGH VOLTAGE ON THE #1 INTAKE
AIR HEATER RELAY . . . . . . . . . . . . . . . . . 1316
P0572-LOW VOLTAGE DETECTED AT THE
BRAKE SWITCH . . . . . . . . . . . . . . . . . . . . . 1326
P0573-HIGH VOLTAGE DETECTED AT THE
BRAKE SWITCH . . . . . . . . . . . . . . . . . . . . . 1330
P0580-LOW VOLTAGE DETECTED AT THE
SPEED CONTROL SWITCH . . . . . . . . . . . . 1333
P0581-HIGH VOLTAGE DETECTED AT THE
SPEED CONTROL SWITCH . . . . . . . . . . . . 1337
SWITCHING PROPERLY . . . . . . . . . . . . . . 1347
P0628-LOW VOLTAGE DETECTED AT THE
FUEL LIFT PUMP . . . . . . . . . . . . . . . . . . . . 1351
P0629-HIGH VOLTAGE DETECTED AT THE
FUEL LIFT PUMP . . . . . . . . . . . . . . . . . . . . 1355
P0633-SKIM SECRET KEY NOT ENTERED
P0642-LOW VOLTAGE AT THE #2 SENSOR
SUPPLY CIRCUIT . . . . . . . . . . . . . . . . . . . . 1361
P0643-HIGH VOLTAGE AT THE #2 SENSOR
SUPPLY CIRCUIT . . . . . . . . . . . . . . . . . . . . 1365
P0646-LOW VOLTAGE DETECTED AT THE
A/C CLUTCH RELAY . . . . . . . . . . . . . . . . . 1368
P0647-HIGH VOLTAGE DETECTED AT THE
A/C CLUTCH RELAY . . . . . . . . . . . . . . . . . 1372
P0652-LOW VOLTAGE AT THE #1 SENSOR
SUPPLY CIRCUIT . . . . . . . . . . . . . . . . . . . . 1375
P0653-HIGH VOLTAGE AT THE #1 SENSOR
SUPPLY CIRCUIT . . . . . . . . . . . . . . . . . . . . 1379
P0698-ACCELERATOR PEDAL POSITION
SENSOR (APPS) SUPPLY VOLTAGE TOO
LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1382
P0699-ACCELERATOR PEDAL POSITION
SENSOR (APPS) SUPPLY VOLTAGE TOO
HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1386
P2146-BANK 1 (CYLINDERS 1-3) SHORTED
HIGH OR LOW . . . . . . . . . . . . . . . . . . . . . . 1424
P2149-BANK 2 (CYLINDERS 4-6) SHORTED
HIGH OR LOW . . . . . . . . . . . . . . . . . . . . . . 1433
P2266-WATER IN FUEL (WIF) SENSOR
VOLTAGE TOO LOW . . . . . . . . . . . . . . . . . 1442
P2503-CHARGING SYSTEM OUTPUT LOW
P2504-CHARGING SYSTEM OUTPUT HIGH
P2509-POWERDOWN DATA LOST ERROR
P2607-LOW VOLTAGE AT THE #2 INTAKE
AIR HEATER RELAY . . . . . . . . . . . . . . . . . 1463
P2608-HIGH VOLTAGE AT THE #2 INTAKE
AIR HEATER RELAY . . . . . . . . . . . . . . . . . 1467
P2609-NO VOLTAGE DROP SEEN FROM
INTAKE AIR HEATERS . . . . . . . . . . . . . . . . 1470
*ENGINE SPEED SURGES UNDER LOAD
OR IN OPERATING RANGE . . . . . . . . . . . . 1473
*ENGINE SPEED SURGES LOW OR HIGH
IDLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1474
*ENGINE DIFFICULT TO START OR WILL
NOT START (NO EXHAUST SMOKE
WHILE CRANKING) . . . . . . . . . . . . . . . . . . 1475
*ENGINE DIFFICULT TO START OR WILL
NOT START (EXHAUST SMOKE) . . . . . . . . 1476
*ENGINE SPEED SURGES IN PTO OR
CRUISE CONTROL . . . . . . . . . . . . . . . . . . 1477
*CHECKING THE ACCELERATOR PEDAL
SENSOR CALIBRATION . . . . . . . . . . . . . . . 1478
GROUNDS . . . . . . . . . . . . . . . . . . . . . . . . . 1479
*CHECKING PRESSURE LIMITING VALVE
ON THE FUEL RAIL FOR INTERNAL
LEAKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1480
PERFORMANCE TEST . . . . . . . . . . . . . . . . 1483
*INTAKE AIR SYSTEM PRESSURE TEST
9 - 1046
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
CAUTION
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1047
P0016-ENGINE SPEED SIGNAL MISMATCH
9 - 1048
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
DR/DH
P0016-ENGINE SPEED SIGNAL MISMATCH (CONTINUED)
For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
While Engine is running.
•
Set Condition:
When the engine speed detected by the Engine Position Sensor (cam) and the Engine Speed Sensor (crank)
differ by a specified RPM amount.
Possible Causes
DAMAGE TO THE ESS OR EPS
MECHANICAL MISALIGNMENT OF THE ESS OR EPS
MECHANICAL MISALIGNMENT OF THE CAMSHAFT AND CRANKSHAFT GEARS
INTERMITTENT CONDITION
Diagnostic Test
1.
DAMAGE TO THE ESS OR EPS
Visually inspect the condition of the tone wheel, ESS, and EPS for damage.
Are any of the components damaged?
Yes
>> Repair or replace any damaged component.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
No
>> Go To 2
2.
MECHANICAL MISALIGNMENT OF THE ESS OR EPS
Verify the speed indicator ring is properly positioned relative to the locating pin in the front face of the crankshaft.
Is the speed indicator ring properly installed?
Yes
>> Go To 3
No
>> Repair the speed ring indicator ring installation.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
3.
Test Mechanical misalignment of the camshaft and crankshaft gears.
Check the mechanical alignment of the camshaft gear to the crankshaft gear. Refer to service manual for assis-
tance.
Are the gear teeth in proper alignment?
Yes
>> Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure). (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
No
>> Repair the gear alignment.
Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
DR/DH
ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL
9 - 1049
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