LEMON Manuals: Even more car manuals for everyone
Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Engine Control System & Fuel System - 4.6L - DTC P0351 To P2440) >> DTC P0412 or P0418 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Relay Test

  1. Test between the normally-closed switch terminals, if any, for 0 ohms.
  2. Test between the normally-open switch terminals for infinite ohms.
  3. Test between each switch terminal and either coil terminal for infinite ohms.
  4. Connect the relay coil terminals to ground and fused power to energize the relay.
  5. Test between the normally-closed switch terminals, if any, for infinite ohms.
  6. Test between the normally-open switch terminals for 0 ohms.
  7. Test between each switch terminal and either coil terminal for 0 volts.
scientia non olet · About LEMON Manuals