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Smart Key System (Start Function) (Diagnostic Codes & Circuit Tests) (Except Phv): Other Toyota Prius III

Starter ~992 words

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) OK: Go to next step
  3. CHECK FOR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-393051-S38126563102011040700000) . Turn the power switch on (IG). After 25 seconds have elapsed, check if the DTC has been set again. OK DTC B2275 is not output. NG --> See step 4 OK --> See step 5
  4. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393046-S05278016202011040700000)
  5. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «REMOVAL»(ref-393204-S42906617832011040700000)
  1. CHECK FOR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-393051-S38126563102011040700000) . Turn the power switch on (IG). After 330 seconds have elapsed, check if the DTC has been set again. OK DTC B2277 is not output HINT: If there are any signs that water was present, before replacing the power management control ECU, take measures to prevent any further water entry. NG --> See step 2 OK --> See step 3
  2. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «REMOVAL»(ref-393204-S42906617832011040700000)
  3. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393046-S05278016202011040700000)
  1. CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) OK: Go to next step
  3. CHECK FOR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-393051-S38126563102011040700000) . Turn the power switch on (READY). After 25 seconds have elapsed, check if the DTC has been set again. OK DTC B2286 is not output NG --> See step 4 OK --> See step 5
  4. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «REMOVAL»(ref-393204-S42906617832011040700000)
  5. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393046-S05278016202011040700000)
  1. CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) OK: Go to next step
  3. CHECK FOR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-393051-S38126563102011040700000) . Check for DTC again. OK DTC U0293 is not output NG --> See step 4 OK --> See step 5
  4. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «REMOVAL»(ref-393204-S42906617832011040700000)
  5. USE SIMULATION METHOD TO CHECK. Refer to «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-393046-S13650685622011040700000)
  1. CHECK HARNESS AND CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) OK: Go to next step
  3. INSPECT IG2 RELAY See step 4 NG --> REPLACE IG2 RELAY OK: Go to next step
  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (IG1 NO. 1, IG1 NO. 2 AND IG1 NO. 3 RELAY) See step 4 NG --> See step 10 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INSTRUMENT PANEL J/B) See step 5 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND) See step 6 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND) OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - IG2 RELAY) See step 7 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - IG2 RELAY) OK: Go to next step
  8. CHECK HARNESS AND CONNECTOR (ENGINE ROOM RELAY BLOCK ASSEMBLY - BODY GROUND) See step 8 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE ROOM RELAY BLOCK ASSEMBLY - BODY GROUND) OK: Go to next step
  9. CHECK POWER MANAGEMENT CONTROL ECU See step 9 NG --> See step 11 OK --> See step 12
  10. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL»(ref-393204-S05105097092011040700000)
  11. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «REMOVAL»(ref-393204-S42906617832011040700000)
  12. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393046-S05278016202011040700000)
  1. CHECK HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) See step 1 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - POWER MANAGEMENT CONTROL ECU) OK: Go to next step
  2. CHECK HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) OK: Go to next step
  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY See step 3 NG --> See step 7 OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - INSTRUMENT PANEL J/B) See step 4 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND) See step 5 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - BODY GROUND) OK: Go to next step
  6. INSPECT POWER MANAGEMENT CONTROL ECU See step 6 NG --> See step 8 OK --> See step 9
  7. REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL»(ref-393204-S05105097092011040700000)
  8. REPLACE POWER MANAGEMENT CONTROL ECU. Refer to «REMOVAL»(ref-393204-S42906617832011040700000)
  9. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-393046-S05278016202011040700000)

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