( SMR7E40K72100091032FAAT00 )

DTC Troubleshooting: P1032 (183)

DTC P1032:

Fuel Heater Relay Circuit Open

NOTE:

Before you troubleshoot, record all freeze data and review the general troubleshooting information.
If DTC P0045, P0403, and/or P2008 is stored at the same time as DTC P1032, troubleshoot them first then recheck for DTC P1032.

Turn the ignition switch ON (II).

Clear the DTC with the HDS.

Do the FUEL HEATER ON/OFF in the INSPECTION MENU with the HDS.

Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1032 indicated?

YES	-	Go to Step 5 .
NO	-	Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the under-hood fuse/relay box and the ECM.■

Turn the ignition switch OFF.

Remove the under-hood fuse/relay box.

Check the fuel heater relay.

Is the fuel heater relay OK?

YES	-	Go to Step 8 .
NO	-	Replace the under-hood fuse/relay box, then go to Step 12 .

Disconnect ECM connector No. 2 (58P).

Connect under-hood fuse/relay box connector J (10P) terminal No. 7 to body ground with a jumper wire.

Check for continuity between ECM connector No. 2 terminal No. 41 and body ground.

Is there continuity?

YES	-	Substitute a known-good under-hood fuse/relay box, then go to Step 11 and recheck. If DTC P1032 is not indicated, replace the original under-hood fuse/relay box, then go to Step 11 . If DTC P1032 is indicated, go to Step 16 .
NO	-	Repair open in the wire between the under-hood fuse/relay box and ECM connector No. 2 terminal No. 41, then go to Step 11 .

Reconnect all connectors.

Turn the ignition switch ON (II).

Reset the ECM with the HDS.

Do the FUEL HEATER ON/OFF in the INSPECTION MENU with the HDS.

Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1032 indicated?

YES	-	Check for poor connections or loose terminals at the under-hood fuse/relay box and the ECM, then go to Step 1 .
NO	-	Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■

Reconnect all connectors.

Update the ECM if it does not have the latest software, or substitute a known-good ECM.

Do the FUEL HEATER ON/OFF in the INSPECTION MENU with the HDS.

Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1032 indicated?

YES	-	Check for poor connections or loose terminals at the under-hood fuse/relay box and the ECM. If the ECM was updated, substitute a known-good, then go to Step 18 . If the ECM was substituted, go to Step 1 .
NO	-	If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■