Special Tools
SA9154Z-A
Starting and Charging System Tester
Diagnostic Aids
Note:
| • | A dead battery is usually a symptom of another problem. Fix the problem, do not just charge or change the battery. |
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 terminals. This may cut through any coating or through any oxidation that may be present on the
terminals. |
| • | 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. |
| 3. | Replace the battery only if the Out-of-Vehicle test shows a "Bad Battery" result. This prevents battery replacements that are due only to faulty battery cable connections. |
Circuit/System Testing
Warning: Refer to Battery Disconnect Warning in the Preface section.
- Inspect the battery for a cracked, broken, or damaged case, which may be indicated by battery acid leakage.
| ⇒ | If there is any apparent damage, replace the battery. |
- Verify the cold cranking amperage (CCA), and reserve capacity (RC) and/or amp hour (AH) rating of the battery meets or exceeds the original battery or original equipment (OE) specification. Refer to
Battery Usage.
| ⇒ | If the battery does not meet or exceed specifications, replace the battery. |
- Verify that the battery cables are clean and tight. The battery terminal bolts should be torqued as specified in
Fastener Tightening Specifications.
| ⇒ | If the battery cable(s) need to be cleaned, clean as required and tighten as specified. |
| ⇒ | If the battery cable(s) are damaged, replace then tighten as specified. |
- Install the
J 42000
and follow directions supplied by the tester.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
