Honda Jazz/Fit 2004 · Service Manual

ABS Indicator Circuit Troubleshooting (Without VSA)

ABS Indicator Circuit Troubleshooting

ABS indicator does not come on


1.Turn the ignition switch OFF then ON (II) again.

Does the brake system indicator come on?


YES - Go to 2.


NO - Repair open in the indicator power source circuit:n

  • Blown No. 3 (7.5 A) fuse.
  • Open in the wire between the No. 3 (7.5 A) fuse and gauge assembly.
  • Open circuit inside the fuse box.


2.Turn the ignition switch OFF.

3.Disconnect the ABS control unit 25P connector.

4.Turn the ignition switch ON (II).

Does the ABS indicator come on?


YES - Check for loose terminals in the ABS control unit 25P connector. If necessary, substitute a known-good  ABS modulator-control unit, and recheck.n


NO - Go to 5.


5.Turn the ignition switch OFF.

6.Remove the gauge assembly.

7.Disconnect the gauge assembly connector C (30P).

8.Check for continuity between the gauge assembly connector C (30P) terminal No. 28 and body ground.

 

SAA4EQ6D10600012332FAAD01GAUGE ASSEMBLY CONNECTOR C (30P)Wire side of female terminalsWALP (BLU/RED)

Is there continuity?


YES - Repair short to body ground in the wire between the gauge assembly and the ABS modulator-control unit.n


NO - Go to 9.


9.Connect the gauge assembly connector C (30P), and disconnect the gauge assembly connector A (20P).

10.Check for continuity between the gauge assembly connector A (20P) terminal No. 19 and body ground.

 

SAA4EQ6D10600012332FAAD02GAUGE ASSEMBLY CONNECTOR A (20P)Wire side of female terminalsGND (BLK)

Is there continuity?


YES - Check for loose terminals in the gauge assembly connectors. If the connector is OK, replace the gauge assembly.n


NO - Repair open in the wire between the gauge assembly and body ground (G502).n

ABS indicator does not go off


1.Disconnect the negative cable from the battery.

2.Disconnect the ABS control unit 25P connector.

3.Reconnect the battery cable.

4.Turn the ignition switch ON (II).

5.Measure the voltage between the ABS control unit 25P connector terminal No. 4 and body ground.

 

SAA4EQ6D10600012332FAAD03Wire side of female terminalsABS CONTROL UNIT 25P CONNECTORIG1 (YEL)

Is there battery voltage?


YES - Go to 6.


NO - Repair open in the wire between the No. 25 (7.5 A) fuse and the ABS modulator-control unit.n


6.Turn the ignition switch OFF.

7.Check for continuity between the ABS control unit 25P connector terminal No. 8 and body ground.

 

SAA4EQ6D10600012332FAAD04Wire side of female terminalsABS CONTROL UNIT 25P CONNECTORGND (BLK)

Is there continuity?


YES - Go to 8.


NO - Repair open in the wire between the ABS modulator-control unit and body ground (G202).n


8.Turn the ignition switch ON (II).

9.Connect ABS control unit 25P connector terminal No. 7 and body ground with a jumper wire.

 

SAA4EQ6D10600012332FAAD05Wire side of female terminalsABS CONTROL UNIT 25P CONNECTORWALP (BLU/RED)JUMPER WIRE

Does the ABS indicator go off?


YES - Check for loose terminals in the ABS control unit 25P connector. If necessary, substitute a known-good  ABS modulator-control unit, and recheck.n


NO - Go to 10.

10.Remove the jumper wire from the ABS control unit 25P connector.

11.Remove the gauge assembly.

12.Connect the gauge assembly connector C (30P) terminal No. 28 and body ground.

 

SAA4EQ6D10600012332FAAD06GAUGE ASSEMBLY CONNECTOR C (30P)Wire side of female terminalsWALP
(BLU/RED)JUMPER
WIRE

Does the ABS indicator go off?


YES - Repair open in the wire between the gauge assembly and the ABS modulator-control unit.n


NO - Check for loose terminals in the gauge assembly connectors. If the connectors are OK, replace the gauge assembly.n