Jeep WG Grand Cherokee 2002, Руководство по обслуживанию

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Symptom:
SYSTEM OVERVOLTAGE
When Monitored and Set Condition:
SYSTEM OVERVOLTAGE
When Monitored: Ignition on. The CAB monitors the Fused B(+) circuit at all times for
proper system voltage.
Set Condition: If the voltage is above 16.5 volts for greater than 420 milliseconds (ms),
the Diagnostic Trouble Code (DTC) is set.
POSSIBLE CAUSES
BATTERY OVERCHARGED
INTERMITTENT DTC
FUSED IGNITION SWITCH OUTPUT HIGH
GROUND CIRCUIT OPEN
CAB - INTERNAL FAULT
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIII
t
, erase DTC’s.
Turn the ignition off.
Turn the ignition on.
Start the engine.
With the DRBIII
t
, read DTC’s.
Does the DRBIII
t
display System Overvoltage DTC?
All
Yes
→
Go To 2
No
→
Go To 6
2 Turn the ignition off.
Inspect for battery charger connected to battery.
Is a battery charger connected to the battery? All
Yes
→
Charge battery to proper level. Disconnect the battery charger.
Clear DTC’s.
Perform ABS VERIFICATION TEST - VER 1.
No
→
Go To 3
57
BRAKES (CAB)
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