General Pinpoint Test 12: No Start

PINPOINT TEST 12 - NO START

PINPOINT TEST 12		NO START
STEP	INSPECTION		ACTION
1	ATTEMPT TO CRANK ENGINE NOTE: Verify fuel pump shutoff switch is set (button pushed in). See INERTIA FUEL SHUTOFF SWITCH REMOVAL/INSTALLATION . Does engine crank?	Yes	Go to next step.
1		No	See STARTING CONCERNS .
2	IDENTIFY TYPE OF NO START NOTE: The purpose of this test step is to identify intermittent No Starts in order to guide the technician to the proper repair procedure. Does vehicle start now?	Yes	Vehicle is an intermittent No Start. See GENERAL PINPOINT TEST 4: INTERMITTENT .
2		No	Go to next step.
3	CHECK FOR VREF AT THROTTLE POSITION (TP) SENSOR Disconnect TP sensor. Key ON, Engine OFF (KOEO). Measure voltage between VREF circuit (GY/W) and SIG RTN circuit (GY/R) at the TP sensor connector. Key OFF. Was voltage between 4.0 and 6.0 volts?	Yes	Reconnect TP sensor. Go to next step.
3		No	See GENERAL PINPOINT TEST 1: VEHICLE REFERENCE VOLTAGE .
4	CHECK FEPS CIRCUIT FOR SHORT TO POWER Key ON, Engine OFF (KOEO). Measure voltage between Pin 13 (V) at data link connector D-01 and battery negative post. Key OFF. Was voltage greater than 9.0 volts?	Yes	Repair short to power. Restore vehicle. Rerun Quick Test. See PCM QUICK TEST .
4		No	Go to next step.
5	CHECK PIP IN THE PCM NOTE: The WDS or equivalent tester must be connected to a reliable power source that is powered with the key in the START position (such as directly to the vehicle battery). Also verify that the vehicle battery is fully charged. Access PIP PID. While viewing the PIP PID, crank engine. Is the PIP PID switching on and off?	Yes	Key OFF. See GENERAL PINPOINT TEST 13: IGNITION SCOPE PINPOINT TEST to check ignition coils, plugs and wires. If OK, Go to next step.
5		No	See GENERAL PINPOINT TEST 8: CRANKSHAFT POSITION (CKP) SENSOR .
6	CHECK FUEL PRESSURE WARNING: Before servicing or replacing any components in the fuel system, reduce the possibility of injury or fire following warning, caution, and handling directions found in general test 5 (fuel delivery). See GENERAL PINPOINT TEST 5: FUEL DELIVERY SYSTEM . Release fuel pressure. See FUEL PRESSURE RELIEF . Install fuel pressure gauge SST 49 UN01 010. WDS or equivalent tester connected. Key ON, Engine OFF (KOEO). Enter Output Test Mode and run fuel pump to obtain maximum fuel pressure. Key OFF. Was fuel pressure between 207-448 kPa (30-65 psi)?	Yes	Go to next step.
6		No	See GENERAL PINPOINT TEST 5: FUEL DELIVERY SYSTEM .
7	CHECK FUEL PRESSURE LEAKDOWN Fuel pressure gauge SST 49 UN01 010 installed. WDS or equivalent tester connected. Key ON, Engine OFF (KOEO). Access Output Test Mode and run fuel pump to obtain maximum fuel pressure. Exit Output Test Mode. Key OFF. Verify fuel pressure remains within 16 kPa (5 psi) of the maximum pressure for one minute after turning off fuel pump. Does fuel pressure remain within 16 kPa (5 psi)?	Yes	Restore vehicle. Go to next step.
7		No	See GENERAL PINPOINT TEST 5: FUEL DELIVERY SYSTEM .
8	CHECK FUEL INJECTORS FOR VPWR NOTE: Check at least two fuel injectors, one on each bank. A no start condition can exist only if greater than 50% of the fuel injectors are without VPWR. Disconnect any two fuel injectors. Key ON. Measure VPWR circuit (R) voltage at fuel injector harness connector. Is voltage greater than 10.5 volts?	Yes	Key OFF. Go to next step.
8		No	Repair VPWR circuit.
9	CHECK FUEL INJECTORS' ABILITY TO DELIVERY FUEL Connect Fuel Pressure Gauge SST 49 UN01 010 to Schrader valve. Locate and disconnect the fuel pump shutoff switch. Cycle key several times. Monitor SST while cranking the engine for at least five seconds. Is there a pressure drop greater than 34 kPa (5 psi) while cranking the engine?	Yes	The EEC system is not the cause of the no start. Return to See SYMPTOM TROUBLESHOOTING CHART - ENGINE DRIVEABILITY .
9		No	Replace PCM. See POWERTRAIN CONTROL MODULE (PCM) REMOVAL/INSTALLATION
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.