Chrysler 2005 Crossfire SRT6 Service Manual page 3080

21 - 10 NAG1 - ELECTRICAL DIAGNOSTICS
(PO563) SYSTEM OVERVOLTAGE (CONTINUED)
When Monitored and Set Condition
• When Monitored: Always monitored with system active at each ignition cycle.
• Set Condition: System voltage above 16.9 volts with the engine and transmission input speed sensors above
2000 RPM for 60 seconds.
VEHICLE JUMP STARTED IMPROPERLY
ENGINE CHARGING SYSTEM DTCS PRESENT
TRACTION SYSTEM RELAY OUTPUT VOLTAGE HIGH
TRANSMISSION CONTROL MODULE
For a complete Transmission Control Module Circuit Diagram, (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTO-
MATIC - NAG1 - SCHEMATICS AND DIAGRAMS).
Diagnostic Test
1.
PRE-DIAGNOSTIC CHECK OUT
Note: Low fluid level can be the cause of many transmission
problems. If the fluid level is low, locate and repair the leak then
check and adjust the fluid level in accordance with the Service
Information.
Note: Always perform diagnostics with a fully charged battery to
avoid false symptoms.
With the DRB III , read Engine DTCs. Check and repair all engine
DTCs prior to performing transmission symptom diagnostics.
With the DRB III , read and record all Transmission DTCs.
Note: Check connectors - Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.
Most DTCs set on start up but some must be set by driving the vehicle such that all diagnostic monitors have run.
Note: Check for any Technical Service Bulletins that may apply.
Perform this procedure prior to Symptom diagnosis.
Continue
Go To 2
2.
VEHICLE JUMP STARTED IMPROPERLY
Determine if the vehicle was jump started improperly.
Note: If the battery was jump started with the batteries in series, the System Overvoltage DTC will be set.
Was the vehicle jump started improperly?
Yes >> Erase the DTC if the vehicle was jump started improperly.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
No >> Go To 3
POSSIBLE CAUSES
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