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Problem Symptoms Table

WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

When a malfunction is not confirmed by a DTC (Diagnostic Trouble Code) check and the cause of problem cannot be identified through a basic inspection, troubleshoot according to the priority order indicated in the table below.

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See
Engine does not crank (Does not start) 1. Immobilizer System -
2. Starter INSPECTION
3. STA relay ON-VEHICLE INSPECTION
No initial combustion (Does not start) 1. ECM power source circuit ECM POWER SOURCE CIRCUIT 
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. VC output circuit VC OUTPUT CIRCUIT 
4. ECM TERMINALS OF ECM 
Engine cranks normally but difficult to start 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
2. Compression ON-VEHICLE INSPECTION
Difficult to start with cold engine 1. Starter signal circuit DTC P0617 STARTER RELAY CIRCUIT HIGH 
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
Difficult to start with warm engine 1. Starter signal circuit DTC P0617 STARTER RELAY CIRCUIT HIGH 
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
High engine idling speed (Poor idling) 1. A/C signal circuit TERMINALS OF ECU
2. ECM power source circuit ECM POWER SOURCE CIRCUIT 
3. Electronic throttle control system THROTTLE BODY 
4. Air induction system -
5. PCV hose -
Low engine idling speed (Poor idling) 1. A/C signal circuit TERMINALS OF ECU
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Electronic throttle control system THROTTLE BODY 
4. Air induction system -
5. PCV hose -
Rough idling (Poor idling) 1. Compression ON-VEHICLE INSPECTION
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Electronic throttle control system THROTTLE BODY 
4. Air induction system -
5. PCV hose -
Hunting (Poor idling) 1. ECM power source circuit ECM POWER SOURCE CIRCUIT 
2. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
3. Spark plug ON-VEHICLE INSPECTION
4. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
5. Injector INSPECTION
6. Electronic throttle control system THROTTLE BODY 
7. Air induction system -
8. PCV hose -
Hesitation/ Poor acceleration (Poor driveability) 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
2. A/T faulty* (A750E) PROBLEM SYMPTOMS TABLE
3. A/T faulty* (A750F) PROBLEM SYMPTOMS TABLE
4. Spark plug ON-VEHICLE INSPECTION
5. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
6. Injector INSPECTION
Surging (Poor driveability) 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
2. Spark plug ON-VEHICLE INSPECTION
3. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
4. Injector INSPECTION
Engine stalls soon after starting 1. Fuel pump control circuit FUEL PUMP CONTROL CIRCUIT 
2. Spark plug ON-VEHICLE INSPECTION
3. Ignition system DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" PRIMARY / SECONDARY CIRCUIT; DTC P0356 IGNITION COIL "F" PRIMARY / SECONDARY CIRCUIT 
4. Injector INSPECTION
Engine stalls during A/C operation 1. A/C signal circuit TERMINALS OF ECU
2. ECM TERMINALS OF ECM 
Unable/difficult to refuel Refueling valve (canister) -
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