BELT TENSION
Vehicles are equipped with automatic drive belt tensioner. Drive belt does not require adjustment. Inspect condition and tension of generator drive belt prior to performing any on-vehicle charging system tests. Replace belt and/or repair tensioner mechanism if necessary.
SYSTEM TESTS
| CAUTION | When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |
Note. For proper diagnostics, see VIN CODE IDENTIFICATION table.
| Symptom | Perform Test |
|---|
| Battery Voltage Is Discharged Or Battery Voltage Is Low | A |
| Warning Indicator Is On With Engine Running, System Is Not Charging | B |
| System Overcharges | C |
| Warning Indicator Is On With Engine Running, System Is Charging | D |
| Warning Indicator Is Off With Ignition On, Engine Not Running | E |
| Warning Indicator Flickers Or Operates Intermittently | F |
| Generator Is Noisy | G |
| Radio Interference | H |
2002
| Application | Maximum Amperage Output Rating |
|---|
| Generator Amperage Rating |
| Standard | 95 Amp |
| 58/120 | 65 Amp |
| 45/110 | 60 Amp |
| 35/90 | 45 Amp |
| Load Test (1) |
| With Tester Load (2) | 58 Amps Or More |
| Without Tester Load (3) | (4) |
| No-Load Test (1) (2) | 13-15 Volts |
| (1) All tests are performed with engine running at 2000 RPM. (2) All accessories off. (3) Perform this test with engine running, A/C on, blower motor on high speed, and headlamps on high beam. (4) With accessories on, voltage should increase a minimum of 0.5 volt above base voltage. |
| (1) | All tests are performed with engine running at 2000 RPM. |
| (3) | Perform this test with engine running, A/C on, blower motor on high speed, and headlamps on high beam. |
| (4) | With accessories on, voltage should increase a minimum of 0.5 volt above base voltage. |
GENERATOR SPECIFICATIONS - 2002
2003
| Application | Maximum Amperage Output Rating |
|---|
| Generator Amperage Rating | 120 Amp |
| Load Test (1) |
| With Tester Load (2) | 76 Amps Or More |
| Without Tester Load (3) | (4) |
| No-Load Test (1) (2) | 13-15 Volts |
| (1) All tests are performed with engine running at 2000 RPM. (2) All accessories off. (3) Perform this test with engine running, A/C on, blower motor on high speed, and headlamps on high beam. (4) With accessories on, voltage should increase a minimum of 0.5 volt above base voltage. |
| (1) | All tests are performed with engine running at 2000 RPM. |
| (3) | Perform this test with engine running, A/C on, blower motor on high speed, and headlamps on high beam. |
| (4) | With accessories on, voltage should increase a minimum of 0.5 volt above base voltage. |
GENERATOR SPECIFICATIONS - 2003
Explorer
For wiring diagrams, see STARTING/CHARGING in SYSTEM WIRING DIAGRAMS article.
Mountaineer
For wiring diagrams, see STARTING/CHARGING in SYSTEM WIRING DIAGRAMS article.
For wiring diagrams, see STARTING/CHARGING in SYSTEM WIRING DIAGRAMS in ELECTRICAL.
For wiring diagrams, see STARTING/CHARGING in SYSTEM WIRING DIAGRAMS in ELECTRICAL.
