Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSISUZU1996TROOPER S, AUTOMATICREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION DIAGNOSIS - 4L30-ECOMPONENT TESTINGMODE SWITCH
1996 Isuzu Trooper S, Automatic
Mode Switch
1996 Isuzu Trooper S, AutomaticSECTION Mode Switch
- Mode switch is located on side of transmission. See Figure . Remove necessary covers for access to mode switch electrical connector. Disconnect mode switch electrical connector and note terminal identification. See Fig 1 .
- Using a DVOM, check for continuity between specified terminals in relation to shift lever position. See MODE SWITCH CONTINUITY table. If continuity is not as specified, mode switch may require adjustment. See MODE SWITCH under REMOVAL & INSTALLATION. Replace mode switch if specified continuity cannot be obtained by adjusting.
MODE SWITCH CONTINUITY
| Shift Lever Position | Continuity Between Terminal Nos. |
|---|---|
| "P" | 3, 5 & 8 |
| "R" | 5, 7 & 8 |
| "N" | 3, 5 & 7 |
| "D" | 5, 6 & 7 |
| "3" | 3, 5, 6, 7 & 8 |
| "2" | 5, 6 & 8 |
| "L" | 3, 5 & 6 |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.