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1991
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Wrangler Base, 2.5 P
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Alternator & Regulator
Alternator & Regulator
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Description
Adjustments
Belt Tension Adjustment
Trouble Shooting
Preliminary Checks
Unsteady Or Low Charging
Overcharging
Testing (On-Vehicle)
Output Wire Resistance (Voltage Drop) Test
Current Output Test
Diagnostic System
Entering On-Board Diagnostics
Notes
Reading Trouble Codes
Trouble Code Explanation
Check Engine Light Diagnostic Mode
Diagnosis Using DRB-II
Erasing Fault Codes
DRB-II Functions
Notes
Read Faults Mode
State Displays Mode
Actuator Test Mode
Adjustments Mode
DRB-II Volt/Ohmmeter Mode
DRB-II Continuity Meter Mode
Vehicles Tested Mode
How To Use Mode
Diagnostic Tests
Test Ch-1, Battery Test
Test Ch-2, Alternator Field Not Switching Properly (Code 41)
Test Ch-3, Charging System Voltage Low (Code 47)
Test Ch-4, Charging System Voltage High (Code 46)
Test Ch-5, Checking For Intermittent Problems
Charging Verification (Ch-VER)
Bench Testing
Torque Specifications