DIAGNOSIS PROCEDURE FOR MIL "ON" DTC P0603 ECM POWER SUPPLY
TECHNICAL SERVICE BULLETIN
Reference Number(s): NTB09-006a, Date of Issue: February 26, 2009
Superceded Bulletin(s): NTB09-006, Date of Issue: January 26, 2009
SERVICE INFORMATION
If you have a vehicle with the MIL "ON" that has a DTC P0603 stored in the ECM:
l Perform the diagnostic steps in this bulletin FIRST.
l This DTC may have been stored due to a series of previous low battery voltage,
dead battery or battery terminal disconnections.
l DO NOT perform any other diagnostic procedures or repairs for this code until you
have performed the ones in this bulletin.
l See the Service Procedure in this bulletin for further detail.
CLAIMS INFORMATION
Submit a Primary Operation (PO) type line claim using the following claims coding:
CLAIMS INFORMATION
SERVICE PROCEDURE
1. Connect CONSULT III to vehicle.
2. Turn ignition "ON", but Do Not Start engine.
3. Check for DTC's:
l Confirm DTC P0603 is stored. If P0603 is not stored, this TSB does not apply.
NISSAN:
2006 -2009 350Z/350Z Roadster, Altima, Armada, Frontier, Maxima,
Pathfinder, Quest, Sentra, Titan, Xterra; 2006-2007 Murano; 2009
Murano; 2007-2009 Versa; 2008-2009 Rogue; 2009 370Z, GT-R
CLASSIFICATION: ECO8-026a
APPLIED
VEHICLES:
2007-2009 Versa (C11); 2006-2009 Sentra (B16); 2006 Altima (L31); 2007-
2009 Altima (L32); 2007-2009 Altima Hybrid (L32HV); 2008-2009 Altima
Coupe (CL32); 2006-2008 Maxima (A34); 2009 Maxima (A35); 2006-2009
Frontier (D40); 2006-2008 350Z (Z33); 2009 350Z Roadster (Z33); 2006-
2009 Xterra (N50); 2006-2009 Pathfinder (R51); 2006-2009 Titan (A60);
2006-2009 Armada (TA60); 006-2007 Murano (Z50); 2009 Murano (Z51);
2008-2009 Rogue (S35); 2006-2009 Quest (V42); 2009 370Z (Z34); 2009 GTR
(R35)
NOTE: The Claims Information section of this bulletin has been amended. No other
content has changed. Discard all earlier versions of this bulletin.
DESCRIPTION OP CODE SYM DIA FRT
DTC P0603 SYSTEM CHECK EX16AA HD 32 0.6
2009 Nissan Maxima S
DIAGNOSIS PROCEDURE FOR MIL "ON" DTC P0603 ECM POWER SUPPLY
2020年3月30日 11:17:43 Page 1 © 2011 Mitchell Repair Information 46 Company, LLC.
l If additional DTC's are stored, document the DTC's before proceeding.
Fig. 1: Screen Display - DTC
4. Erase all DTC's. Confirm that ENGINE has no DTC stored.
Fig. 2: Screen Display - No DTC
5. Turn ignition "OFF". Wait Exactly 5 minutes* after the display changes from "No
DTC" TO "Error".
Fig. 3: Screen Display - Display Change
6. Turn ignition to "ON", but Do Not Start engine. Wait 10 seconds after the display
changes from "Error" to "No DTC".
Fig. 4: Screen Display - No DTC
7. Repeat step 5 and 6 five (5) more times to complete the system check.
If DTC P0603 does not display after the system check:
l This will indicate P0603 was caused by a series of previous low battery
voltage, dead battery or battery terminal disconnections.
l The vehicle harness, connections, and ECM are operating properly.
l Do not replace the ECM. No further action is necessary concerning P0603.
l Use the Claims Information in this bulletin for the previous steps.
l Go to step 9.
If DTC P0603 does display after the system check:
l Use the Claims Information in this bulletin for the previous steps.
l Go to step 8.
8. Refer to the appropriate Electronic Service Manual for further DTC P0603
diagnostic assistance.
l Apply standard warranty claims procedures for repairs of DTC P0603 using ESM
procedures. These repairs are not covered under this bulletin
9. If other DTC's were previously stored, refer to the appropriate Electronic Service
Manual for further diagnostic assistance for those DTCs.
l Apply standard warranty claims procedures for any additional repairs of DTCs using
ESM procedures. These repairs are not covered under this bulletin
NOTE: *This waiting period is necessary for the ECM to completely shut off.
Do not disconnect either battery cable at any time during this
procedure.
2009 Nissan Maxima S
DIAGNOSIS PROCEDURE FOR MIL "ON" DTC P0603 ECM POWER SUPPLY
2020年3月30日 11:17:43 Page 2 © 2011 Mitchell Repair Information Company, LLC.
TECHNICAL SERVICE BULLETIN
Reference Number(s): NTB09-006a, Date of Issue: February 26, 2009
Superceded Bulletin(s): NTB09-006, Date of Issue: January 26, 2009
SERVICE INFORMATION
If you have a vehicle with the MIL "ON" that has a DTC P0603 stored in the ECM:
l Perform the diagnostic steps in this bulletin FIRST.
l This DTC may have been stored due to a series of previous low battery voltage,
dead battery or battery terminal disconnections.
l DO NOT perform any other diagnostic procedures or repairs for this code until you
have performed the ones in this bulletin.
l See the Service Procedure in this bulletin for further detail.
CLAIMS INFORMATION
Submit a Primary Operation (PO) type line claim using the following claims coding:
CLAIMS INFORMATION
SERVICE PROCEDURE
1. Connect CONSULT III to vehicle.
2. Turn ignition "ON", but Do Not Start engine.
3. Check for DTC's:
l Confirm DTC P0603 is stored. If P0603 is not stored, this TSB does not apply.
NISSAN:
2006 -2009 350Z/350Z Roadster, Altima, Armada, Frontier, Maxima,
Pathfinder, Quest, Sentra, Titan, Xterra; 2006-2007 Murano; 2009
Murano; 2007-2009 Versa; 2008-2009 Rogue; 2009 370Z, GT-R
CLASSIFICATION: ECO8-026a
APPLIED
VEHICLES:
2007-2009 Versa (C11); 2006-2009 Sentra (B16); 2006 Altima (L31); 2007-
2009 Altima (L32); 2007-2009 Altima Hybrid (L32HV); 2008-2009 Altima
Coupe (CL32); 2006-2008 Maxima (A34); 2009 Maxima (A35); 2006-2009
Frontier (D40); 2006-2008 350Z (Z33); 2009 350Z Roadster (Z33); 2006-
2009 Xterra (N50); 2006-2009 Pathfinder (R51); 2006-2009 Titan (A60);
2006-2009 Armada (TA60); 006-2007 Murano (Z50); 2009 Murano (Z51);
2008-2009 Rogue (S35); 2006-2009 Quest (V42); 2009 370Z (Z34); 2009 GTR
(R35)
NOTE: The Claims Information section of this bulletin has been amended. No other
content has changed. Discard all earlier versions of this bulletin.
DESCRIPTION OP CODE SYM DIA FRT
DTC P0603 SYSTEM CHECK EX16AA HD 32 0.6
2009 Nissan Maxima S
DIAGNOSIS PROCEDURE FOR MIL "ON" DTC P0603 ECM POWER SUPPLY
2020年3月30日 11:17:43 Page 1 © 2011 Mitchell Repair Information 46 Company, LLC.
l If additional DTC's are stored, document the DTC's before proceeding.
Fig. 1: Screen Display - DTC
4. Erase all DTC's. Confirm that ENGINE has no DTC stored.
Fig. 2: Screen Display - No DTC
5. Turn ignition "OFF". Wait Exactly 5 minutes* after the display changes from "No
DTC" TO "Error".
Fig. 3: Screen Display - Display Change
6. Turn ignition to "ON", but Do Not Start engine. Wait 10 seconds after the display
changes from "Error" to "No DTC".
Fig. 4: Screen Display - No DTC
7. Repeat step 5 and 6 five (5) more times to complete the system check.
If DTC P0603 does not display after the system check:
l This will indicate P0603 was caused by a series of previous low battery
voltage, dead battery or battery terminal disconnections.
l The vehicle harness, connections, and ECM are operating properly.
l Do not replace the ECM. No further action is necessary concerning P0603.
l Use the Claims Information in this bulletin for the previous steps.
l Go to step 9.
If DTC P0603 does display after the system check:
l Use the Claims Information in this bulletin for the previous steps.
l Go to step 8.
8. Refer to the appropriate Electronic Service Manual for further DTC P0603
diagnostic assistance.
l Apply standard warranty claims procedures for repairs of DTC P0603 using ESM
procedures. These repairs are not covered under this bulletin
9. If other DTC's were previously stored, refer to the appropriate Electronic Service
Manual for further diagnostic assistance for those DTCs.
l Apply standard warranty claims procedures for any additional repairs of DTCs using
ESM procedures. These repairs are not covered under this bulletin
NOTE: *This waiting period is necessary for the ECM to completely shut off.
Do not disconnect either battery cable at any time during this
procedure.
2009 Nissan Maxima S
DIAGNOSIS PROCEDURE FOR MIL "ON" DTC P0603 ECM POWER SUPPLY
2020年3月30日 11:17:43 Page 2 © 2011 Mitchell Repair Information Company, LLC.
