Tools Required
SA9154Z-A Starting and Charging System Tester
Diagnostic Aids
Important:
• A dead battery is usually a symptom of another problem. Fix the problem, do not just charge or change the battery. • Failure to properly understand the battery and its function could lead to a misdiagnosis and unneeded repairs. Refer to
Battery Description and Operation
and
Battery Common Causes of Malfunction
for more information.
Follow these instructions in order to avoid an incorrect diagnosis because of connections:
| • | If testing the vehicle with the battery cables still connected, wiggle the SA9154Z-A clips on the terminal. This may cut through any coating or through any oxidation that may be present on the terminal. |
| Even new terminals contain a protective coating that may insulate or cause a resistance in the test circuit. |
| • | If correct connections to the battery terminals in the vehicle are in doubt, perform the following steps: |
| 1. | Disconnect the negative battery cable. |
| 2. | Disconnect the positive battery cable. |
| • | If the tester displays a "Bad Battery" result for a battery tested in the vehicle with the battery cables connected, perform the following steps: |
| 1. | Disconnect the negative battery cable. |
| 2. | Disconnect the positive battery cable. |
Step | Action | Values | Yes | No |
|---|---|---|---|---|
|
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components. | ||||
1 | Inspect the battery for a cracked, broken, or damaged case, which may be indicated by battery acid leakage. Is the battery OK? | -- | Go to Step 2 | Go to Step 9 |
2 | Compare the cold cranking amperage (CCA), and reserve capacity (RC) and/or amp hour (AH) rating of the battery to the original battery or original equipment (OE) specification. Refer to Battery Usage . Does the battery meet or exceed the specifications? | -- | Go to Step 3 | Go to Step 9 |
3 |
Does the negative connector rotate? | -- | Go to Step 6 | Go to Step 4 |
4 | Attempt to rotate the positive battery cable connector clockwise with light finger pressure. Does the positive connector rotate? | -- | Go to Step 6 | Go to Step 5 |
5 |
Important: Ensure that all of the electrical loads are turned OFF.
Did the tester pass the battery? | -- | Battery OK | Go to Step 6 |
6 |
Did you complete the repair? | -- | Go to Step 7 | -- |
7 |
Important: Ensure that both battery cables are disconnected.
Did the tester pass the battery? | -- | Go to Step 8 | Go to Step 9 |
8 |
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems. Are the cable bolts properly tightened? | 6 N·m (53 lb in) | Battery OK | -- |
9 | Replace the battery. Refer to Battery Replacement . Did you complete the replacement? | -- | Battery OK | -- |
