DTC 54-1 (bank angle sensor low voltage)

 

Recheck DTC

Erase the DTC’s (page 4-5).

Turn the ignition switch ON and engine stop switch " ".

Check the bank angle sensor with the HDS pocket tester.

 

Is the DTC 54-1 indicated?

 

YES – GO TO STEP 2.

 

NO – Intermittent failure

 

Bank Angle Sensor Input Voltage Inspection

Turn the ignition switch OFF.

Disconnect the bank angle sensor 2P connector [1] (page 4-48).

Turn the ignition switch ON and engine stop switch " ".

Measure the voltage between the bank angle sensor 2P connector of the wire side and ground.

Connection: Black/blue (+) – Ground (–) Standard: Battery voltage

Is there battery voltage?

 

YES – GO TO STEP 3.

 

NO – Open circuit in Black/blue wire

 

Bank Angle Sensor Signal Line Short Circuit Inspection

Turn the ignition switch OFF.

Disconnect the ECM 33P (Black) connector (page 4-50).

Check for continuity between the bank angle sensor 2P connector [1] of the wire side and ground.

Connection: Red/blue – Ground

Is there continuity?

 

YES – Short circuit in Red/blue wire

 

NO – GO TO STEP 4.

 

 

[1]

 

Bl/Bu

 

[1]

 

 

R/Bu

 

Bank Angle Sensor Signal Line Open Circuit Inspection

Turn the ignition switch OFF.

Check for continuity between the bank angle sensor	[1]
2P connector [1] and ECM 33P (Black) connector
[2] of the wire side.
Connection: Red/blue – Red/blue
TOOL:
Test probe	07ZAJ-RDJA110	R/Bu
Is there continuity?
YES	–GO TO STEP 5.
NO	–Open circuit in Red/blue wire

 

[2]

 

 

R/Bu

 

 

4-27

PGM-FI SYSTEM

Bank Angle Sensor Inspection

Replace the bank angle sensor with a known good one (page 4-48).

Connect the bank angle sensor 2P connector and ECM 33P (Black) connector.

Erase the DTC’s (page 4-5).

Turn the ignition switch ON and engine stop switch " ".

 

Check the bank angle sensor with the HDS pocket tester.

 

Is DTC 54-2 indicated?

 

YES – Replace the ECM with a known good oneand recheck.

 

NO – Faulty original the bank angle sensor.

 

DTC 54-2 (BANK ANGLE SENSOR HIGH VOLTAGE)

 

Recheck DTC

Erase the DTC’s (page 4-5).

Turn the ignition switch ON and engine stop switch " ".

Check the bank angle sensor with the HDS pocket tester.

 

Is the DTC 54-2 indicated?
YES	–GO TO STEP 2.
NO	–Intermittent failure
2. Bank Angle Sensor Input Voltage Inspection
Turn the ignition switch OFF.
	[1]
Disconnect the bank angle sensor 2P connector [1]
(page 4-48).
Turn the ignition switch ON and engine stop switch
" ".		Bl/Bu
Measure the voltage between the bank angle
sensor 2P connector of the wire side and ground.
Connection: Black/blue (+) – Ground (–)
Standard: Battery voltage
Is there battery voltage?
YES	–GO TO STEP 3.
NO	–Open circuit in Black/blue wire

Bank Angle Sensor Signal Line Open Circuit Inspection

 

Turn the ignition switch OFF.
				[2]
[1]
Check for continuity between the bank angle sensor
2P connector [1] and ECM 33P (Black) connector
[2] of the wire side.
Connection: Red/blue – Red/blue
TOOL:
Test probe	07ZAJ-RDJA110			R/Bu	R/Bu
Is there continuity?
YES	–Inspect	the bank angle sensor (page 4-
	48).
NO	–Open circuit in Red/blue wire

 

 

4-28

PGM-FI SYSTEM

MIL TROUBLESHOOTING

 

MIL 1 BLINK (MAP SENSOR)

 

ECM

 

								5 V
SENSOR UNIT
(MAP SENSOR)
								5 V
				Y/R
				Lg/Bl
				G/W

 

Probable cause

 

• Open circuit in Yellow/red wire between the sensor unit and ECM

 

• Open or short circuit in Light green/black wire between the sensor unit and ECM

 

• Open circuit in Green/white wire between the sensor unit and ECM

• Faulty sensor unit

• Faulty ECM

 

Sensor Unit Power Line Inspection

 

Check the sensor unit power line inspection (page 4-8).

 

Is the sensor unit power line normal?
YES	–GO TO STEP 2.
NO	–Replace or repair the abnormal circuit.
2. MAP Sensor Output Voltage Inspection
Turn the ignition switch OFF.
[1]
Connect the ECM 33P (Black) connector.
Disconnect the sensor unit 5P connector [1] (page
4-44).
Turn the ignition switch ON and engine stop switch
" ".				G/W	Lg/Bl
Measure the voltage at the sensor unit 5P connector
of the wire side.
Connection:
Light green/black (+) – Green/white (–)
Standard: 4.75 – 5.25 V

Is the voltage within 4.75 – 5.25 V?

 

YES – Faulty sensor unit (MAP sensor)

 

NO – GO TO STEP 3.

 

 

4-29

PGM-FI SYSTEM

 

MAP Sensor Output Line Short Circuit Inspection

Turn the ignition switch OFF.

Disconnect the ECM 33P (Black) connector.

Check for continuity between the sensor unit 5P connector [1] terminal of the wire side and ground.

Connection: Light green/black – Ground

 

Is there continuity?

 

YES – Short circuit in Light green/black wire

 

NO – GO TO STEP 4.