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Home >> Toyota >> 1993 >> Previa LE, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Circuit Testing >> Test 2: Cruise Control Indicator Light Circuit
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Test 2: Cruise Control Indicator Light Circuit

  1. Turn ignition off. Ensure GAUGE fuse is okay. If fuse is okay, go to next step. If fuse is not okay replace fuse and turn ignition on. If fuse fails, check for short on harness side and repair as necessary.
  2. Remove combination meter and disconnect connector(s). Turn ignition on and ensure battery voltage exists between ground and connector terminal on GAUGE fuse side of combination meter. If battery voltage is present, go to next step. If battery voltage is not present, go to step 5).
  3. Remove CRUISE indicator light and ensure continuity. Replace if necessary. If bulb is okay install bulb, connect combination meter connector and go to next step.
  4. Turn ignition off. Disconnect CC ECU wire harness connector(s). Ensure continuity exists between ground and CC ECU indicator light terminal. If continuity is not present, go to next step. If continuity is present, repair short in indicator light circuit between CC ECU connector and combination meter or between combination meter circuit plate and indicator light. See appropriate vehicle under step 5) for terminal identification.
  5. Turn ignition on. Ensure battery voltage exists between ground and CC ECU indicator light terminal. If battery voltage is present, replace CC ECU and retest system. If battery voltage is not present, repair open in indicator light circuit between CC ECU connector and combination meter or open in combination meter circuit plate between indicator light terminal and indicator bulb or between GAUGE fuse terminal and indicator bulb. Go to appropriate step.
  6. On vehicles with tachometer, test between GAUGE fuse and combination meter 12-pin connector "A" terminal No. A8 (Red/Blue wire). Test between combination meter 12-pin connector "A" terminal No. A11 to CC ECU terminal No. 5 (Yellow/Red wire). Test between combination meter 12-pin connector "A" terminal No. A11 (Yellow/Red wire) and indicator light to combination meter 12-pin connector "A" terminal No. A8 (Red/Blue wire).
  7. On vehicles without tachometer, test between GAUGE fuse and combination meter 8-pin connector "C" terminal No. C3 (Red/Blue wire). Test between combination meter 12-pin connector "A" terminal No. A3 and to CC ECU terminal No. 5 (Yellow/Red wire). Test between combination meter 12-pin connector "A" terminal No. C3 (Red/Blue wire) and indicator light to combination meter 12-pin connector "A" terminal No. A3 (Yellow/Red wire).
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