Ford 2003 Mustang Workshop Manual page 3366

SECTION 414-01: Battery, Mounting and Cables
DIAGNOSIS AND TESTING
Battery
Special Tool(s)
Micro 490 Digital Battery
Analyzer
162-00004
Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Mechanical
Battery
Battery mounting
3. If an obvious cause for a concern is found, correct the cause before proceeding to the next step.
4. If the fault is not visually evident, proceed to the pinpoint test.
Pinpoint Tests
PINPOINT TEST A: BATTERY CONDITION TEST
A1 TEST BATTERY CONDITION
NOTE: No battery with a red test-eye should be
replaced. The red eye only means the battery is
discharged, not necessarily defective. NOTE: Failure
to fully charge the battery before retesting may cause
false readings.
Verify the battery condition using the Battery
Analyzer.
Is the battery OK?
Electrical
Battery cables
Battery posts
Test Step
2003 Mustang Workshop Manual
Result / Action to Take
Yes
Does the meter read, GOOD
BATTERY? RETURN the battery
to service. REFER to Section 414-
00 .
Does the meter read, GOOD-
RECHARGE? CHARGE the
battery and RETURN to service.
REFER to Section 414-00
Does the meter read, CHARGE &
RETEST? Fully CHARGE the
battery and RETEST.
.