PassoFix

P0704 on Toyota Passo (KGC10): Clutch Switch Input Circuit Malfunction

Short answer: P0704 means “Clutch Switch Input Circuit Malfunction”. The car’s computer has found a fault in the Clutch switch system and turns on the Check engine light (MIL). First check: not given in source; see Toyota/Daihatsu repair manual DTC section.

Code
P0704
System
Clutch switch
Dashboard light
Check engine light (MIL)
Also sold as
Daihatsu Boon, Daihatsu Sirion (M300)
Applies to
Unverified for 1st-gen Passo/Boon; 1KR-FE (toyota-club.net list covers all 1KR-FE variants; 1st-gen KGC10/15 fitment not individually confirmed)
Confidence
low - NOT in Daihatsu M300 factory chart (B8-52..55); likely later-gen/Toyota-built 1KR only
Source
toyota-club.net

Symptoms and when it is set

  1. Not given in source

Likely causes

  1. Not given in source (code list only)

What to check, in order

  1. Not given in source; see Toyota/Daihatsu repair manual DTC section

Related on this car

← P0606 P1603 →

Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.