lemon-mirror:
Home >> Scion >> 2004 >> xB Automatic >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnosis >> Problem Symptoms Table

Problem Symptoms Table

PROBLEM SYMPTOMS

Symptom Suspected Area Refer To:
Engine does not crank (Does not start)
  1. 9. Starter
  2. 10. Starter relay
  3. 11. Park/neutral position switch
STARTERS
STARTERS
DTC P0705
No initial combustion (Does not start)
  1. ECM power source circuit
  2. Fuel pump control circuit
  3. ECM
ECM POWER SOURCE CIRCUIT 
FUEL PUMP CONTROL CIRCUIT 
ECM
No complete combustion (Does not start)
  1. Fuel pump control circuit
FUEL PUMP CONTROL CIRCUIT 
Engine cranks normally but difficult to start
  1. Starter signal circuit
  2. Fuel pump control circuit
  3. Compression
DTC P0617 STARTER RELAY CIRCUIT HIGH 
FUEL PUMP CONTROL CIRCUIT 
ENGINE IDENTIFICATION
Difficult to start with cold engine
  1. Starter signal circuit
  2. Fuel pump control circuit
DTC P0617 STARTER RELAY CIRCUIT HIGH 
FUEL PUMP CONTROL CIRCUIT 
Difficult to start with hot engine
  1. Starter signal circuit
  2. Fuel pump control circuit
DTC P0617 STARTER RELAY CIRCUIT HIGH 
FUEL PUMP CONTROL CIRCUIT 
High engine idle speed (Poor idling)
  1. A/C signal circuit (Compressor circuit)
  2. ECM power source circuit
ON--VEHICLE INSPECTION
ECM POWER SOURCE CIRCUIT 
Low engine idle speed (Poor idling)
  1. A/C signal circuit (Compressor circuit)
  2. Fuel pump control circuit
ON--VEHICLE INSPECTION
FUEL PUMP CONTROL CIRCUIT 
Rough idling (Poor idling)
  1. Compression
  2. Fuel pump control circuit
ENGINE IDENTIFICATION
FUEL PUMP CONTROL CIRCUIT 
Hunting (Poor idling)
  1. ECM power source circuit
  2. Fuel pump control circuit
ECM POWER SOURCE CIRCUIT 
FUEL PUMP CONTROL CIRCUIT 
Hesitation/Poor acceleration (Poor driveability)
  1. Fuel pump control circuit
  2. A/T faulty
FUEL PUMP CONTROL CIRCUIT 
PROBLEM SYMPTOMS TABLE
Surging (Poor driveability)
  1. Fuel pump control circuit
FUEL PUMP CONTROL CIRCUIT 
Engine stalls soon after starting
  1. Fuel pump control circuit
FUEL PUMP CONTROL CIRCUIT 
Engine stalls during A/C operation
  1. A/C signal circuit (Compressor circuit)
  2. ECM
ON--VEHICLE INSPECTION
ECM
Unable to refuel/Difficult to refuel
  1. ORVR system
-