Honda Civic. Manual — part 1046

Fig. 4: Identifying Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Does the starter crank the engine?

YES -Go to step 9.

NO -Check the BLK/WHT wire between the starter subharness 1P connector
and the starter. If the wire is OK, remove the starter, and repair or replace as
necessary.

9. Check the following items in the order listed until you find the open circuit:

The YEL wire and connectors between the under-dash fuse/relay box and
the ignition switch.

The RED wire and connectors between the under-dash fuse/relay box and
the main wire harness 1P connector.

The ignition switch (see TEST ).

The clutch interlock switch and connector.

The starter cut relay (see POWER RELAY TEST ).

10. While cranking the engine, check the cranking voltage and the current draw.

Is the cranking voltage greater than or equal to 8.5 V and is the current draw
less than or equal to 380 A?

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)

YES -Go to step 11.

NO -Replace the starter, or remove and disassemble it, and check the
following:

Drag in the starter armature

Shorted armature winding

Excessive drag in the engine

Open circuit in the starter armature commutator segments

Excessively worn starter brushes

Open circuit in the starter brushes

Dirty or damaged helical splines or drive gear

Faulty drive gear clutch

11. Remove the starter, and inspect its drive gear and the flywheel ring gear for

damage. Replace any damaged parts.

12. Select ECM reset (see HDS CLEAR COMMAND ) to cancel ALL

INJECTORS OFF on the HDS.

CLUTCH INTERLOCK SWITCH TEST

1. Disconnect the clutch interlock switch 2P connector (A).

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)

Fig. 5: Identifying Clutch Interlock Switch 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Remove the clutch interlock switch (B).
3. Check for continuity between the terminals according to the table.

If the continuity is not as specified, replace the clutch interlock switch.

If OK, install the clutch interlock switch, and adjust the pedal height (see
CLUTCH PEDAL, CLUTCH PEDAL POSITION SWITCH, AND
CLUTCH INTERLOCK SWITCH ADJUSTMENT ).

Fig. 6: Terminals Continuity Table
Courtesy of AMERICAN HONDA MOTOR CO., INC.

STARTER PERFORMANCE TEST

1. Make a connection for this test using the thickest (gauge) wire possible

(preferably the same gauge as used on the vehicle).

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)

Fig. 7: Identifying Starter Connections
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Connect the battery as shown. If the starter pinion moves out, it is working

properly.

3. Disconnect the battery from the body. If the pinion retracts immediately, it is

working properly.

Fig. 8: Disconnecting Battery From Body
Courtesy of AMERICAN HONDA MOTOR CO., INC.

4. Firmly clamp the starter in a vise.
5. Connect the starter to the battery as shown, and check that the motor turns and

keeps rotating.

NOTE:

To avoid damaging the starter, never leave the battery
connected for more than 10 seconds.

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)