STANDARDIZED RELAYS — Description (Cont'd) — Relay Type / Case Colour / Application Chart (Base K11)
EL-4component photoMASTER relay identification chart (base K11). Case-colour map: GREY=horn, GREEN=EGI/fuel-pump, BLACK 1M=fan/fog/defog/CVT/inhibit/accessory/ign1-2, BLACK 1T=idle-up/rear-wiper/ign3, BROWN 2M=A/C. Supplement-VI/VII later changed some colours.
Description (Cont'd) — Relay Type / Case Colour / Application
1M
Case colourGREY
Terminals3-pin (1/2/3)
ApplicationHorn Relay
1M
Case colourGREEN
Terminals5-pin (1/2/3/5)
ApplicationEGI Relay, Fuel Pump Relay
1M
Case colourBLACK
Terminals5-pin (30/85/86/87)
ApplicationRadiator Fan Relay, Rear fog lamp Relay, Front fog lamp Relay (where fitted), Driving lamp Relay (where fitted), Rear defog Relay, CVT Relay (where fitted), Inhibit Relay (where fitted), Accessory Relay, Ignition 1 Relay, Ignition 2 Relay
1T
Case colourBLACK
Terminals5-pin (1/2/3/4/5, transfer)
ApplicationIdle up Relay, Rear wiper Relay (where fitted), Ignition 3 Relay
2M
Case colourBROWN
Terminals7-pin (1/2/3/5/6/7)
ApplicationAir conditioning Relay (where fitted)
NOTE
Master relay identification chart for base K11. The case-colour-to-application mapping is the key diagnostic reference for finding the right relay in the fuse/relay box:
• GREY = Horn (1M, 3-pin)
• GREEN = EGI / Fuel Pump (1M, 5-pin)
• BLACK (1M) = the workhorse 5-pin Bosch-style relay used for radiator fan, fog lamps, defog, CVT, inhibit, accessory, ignition 1/2 — terminals 30/85/86/87
• BLACK (1T) = transfer-type for idle-up, rear wiper, ignition 3
• BROWN = A/C (2M, 7-pin double-make)
Note: Supplement-VI/VII changed several case colours (e.g. Horn GREY→White, Fuel pump GREEN→Blue). This base-K11 chart is authoritative for early cars.
WARNING
Case colour disambiguates two 1M relays sharing the box: GREY=horn (3-pin) vs GREEN=EGI/fuel-pump (5-pin) vs BLACK=everything else. The 1T BLACK relay LOOKS like the 1M BLACK but has a transfer (SPDT) contact — not interchangeable. Always check the type code AND colour.