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.
PCM Ground Circuits
Disconnect PCM connector. Check continuity between ground and indicated PCM connector terminals. See PCM POWER & GROUND CIRCUITS table. If continuity does not exist, repair appropriate wire between PCM connector and ground.
| Application | PCM Connector/Terminal No. | ||
|---|---|---|---|
| Power Circuits | |||
| Esteem | |||
| 1.6L | C21/2, C21/14 & C21/15 | ||
| 1.8L | E92/8 & E92/23 | ||
| Swift | C21/2, C21/14 & C21/15 | ||
| Vitara 1.6L & 2.0L | C51-3-4,E61-2 & E61-9 | ||
| Grand Vitara 2.5L | C51-2-20, C51-2-21 & E61-35 | ||
| Ground Circuits | |||
| Esteem | |||
| 1.6L | C21/1, C21/13 & C21/26 | ||
| 1.8L | E92/7, E92/26, E92/35, C20/9, C20/21 & 20-26/27 | ||
| Swift | C21/1, C21/13 & C21/26 | ||
| Vitara | C51-3-6, C51-3-17 & C51-2-28 | ||
| Grand Vitara 2.5L | E61-32, C51-3-20, C51-3-21, C51-3-25, C51-3-26, C51-2-2, C51-2-8 & C51-2-9 | ||
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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.
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