Daihatsu Charade 1988 Wiring Diagram – Factory OEM, Not a Rehash

Electrical diagnostics on a 1988 Daihatsu Charade can turn into a nightmare when you’re working with a third-party diagram that conflates pinouts or skips engine variants. This factory Daihatsu Charade 1988 Wiring Diagram manual is the same 21-page document the dealership techs had. It covers both the HC-engine family (G102/G112) and the CB-engine cars (G100). If you’ve ever been burned by an aftermarket schematic that labeled a 30A fuse as a 15A, you know why that distinction matters. I’ve seen guys melt fusible links because they trusted a reprinted diagram that didn’t match the actual harness. This manual fixes that.

System Index: Your Starting Point for Any Circuit

Flip to page 2 and you’ll find the System Index – a three-column table that lists each electrical system (Air Conditioner, Alternator & Regulator, Automatic Transmission ECU, etc.) with page references for the HC-E engine, HC-C engine, and CB engine. No guessing which diagram applies to your car. For example, the EFI ECU is on page 7-2 for HC-E, but for CB-80 it’s on page 4-5. That level of granularity saves hours of tracing wires that don’t even exist on your chassis. Want to know what’s under the dash for the transmission ECU? The index points you to 4-2 for all three engine types.

3 Engine Variants – One Manual Covers Them All

Most wiring diagrams for this generation Charade only show one harness, then you’re left trying to figure out where the CB-90 fuel pump relay differs from the HC-E layout. Not here. The manual splits every system into three columns: HC-E, HC-C, and CB. That means you get distinct diagrams for the starter circuit (1-1 for HC-E and HC-C, but CB has its own routing on 1-1 as well – with a footnote for A/T relay). The ignition coil path, alternator regulator, even the distributor wiring – all broken out by engine type. If you’re swapping a CB engine into an HC chassis, this manual is your roadmap.

Does This Manual Cover the EFI ECU and Automatic Transmission?

Yes. The EFI ECU gets its own section on page 7-2 for HC-E and 4-5 for CB-80. The Automatic Transmission ECU is on page 4-2 for all engines. You also get the Transmission-specific wiring for the 3A/T starter relay and the lock-up control. For manual transmission cars, the stop-light switch wiring is on page 3-6, and the back-up lamp circuit follows the same page. If you’re chasing a no-start on an automatic car, check the A/T relay path – it’s marked separately in the CB engine diagram.

Alternator & Regulator: Factory Pinout vs Aftermarket Guesswork

I’ve seen aftermarket diagrams call the IC regulator terminal “S” when the factory book calls it “B.” That one letter difference can fry a regulator in seconds. In this manual, the alternator and regulator circuits start on page 1-1 (HC-E) and page 1-2 (HC-C and CB). The wiring from the IG switch, the charge warning lamp (CHG) from the combination meter, and the 0.85L wire to the vacuum switch are all drawn with accurate colors and connector views. If you’re rebuilding a harness or installing a new alternator, trust the factory spec – not some scan of a scan.

Get the Right Wiring Path for the Charade – Source Authenticity

This PDF is a direct scan of the original November 1988 publication from Daihatsu Motor Co., Ltd. The foreword warns you that specs may change without notice – that’s factory language, not something a pirate reseller would add. Third-party manuals often omit the System Index page or merge diagrams, losing the distinctions between HC and CB engines. Here, each system index line is preserved. Combined with the related Daihatsu Charade 1978 Technical Manual for earlier models, or the DAIHATSU CHARADE 1987 Workshop Manual for mechanical procedures, you build a complete library. For modern wiring reference on other Daihatsu models, check the Daihatsu XENIA Wiring Diagram – Factory OEM 74‑Page Electrical Manual.

If you’re learning Automotive Wiring fundamentals, complement this with Automotive Wiring theory resources, but always come back to the factory data for pinouts. The OEM document has no “approx” or “typical” labels – every wire gauge (0.5, 0.85, 1.25, 2.0 mm²) and fuse rating (30A, 40A, 60A) is exact.

FAQ: Common Questions About This Wiring Diagram

Does this manual include torque specs?

No. This is a wiring diagram only. Use the workshop manual for torque values on mechanical components.

Can I use this to troubleshoot a CB-90 engine that won’t start?

Absolutely. The ignition coil circuit for CB-90 is on page 5-1, and the starter path is on page 1-1. Follow the 0.85L wire from the noise filter to the distributor. The manual also shows the A/C and EFI ECU wiring for CB-90, so you can verify power at the ECU before condemning the ignition module. Check the fusible link ratings – the CB-80 engine uses a separate F/L block on page 3 while CB-90 uses the main block. This manual walks you through both.

How do I know which engine variant I have?

Check the engine code on the timing belt cover. HC engines have a single overhead cam, CB engines are three-cylinder carbureted or EFI. Your VIN helps – G102 is HC-E, G112 is HC-C, G100 is CB. The manual’s System Index maps each variant to specific pages.

Is this the same as a Haynes or Chilton wiring diagram?

No. Those are aftermarket rewrites that often color-code wires differently and omit rare options like the daylight relay or dim-dip relay. This is the official Daihatsu document printed in 1988. Every page uses the same wire color abbreviations (B, L, R, W, Y) that match the actual harness labels.

Stop chasing ghosts in a charred harness. Download the Factory Manual and get the correct wire paths for your Charade’s engine variant. Your multimeter and your time will thank you.