Diagnostic Charts

TEST 10U1: CHECK FREEZE FRAME DATA
Press [F], [E], [1] and [5] on the scan tool.
CHECK: Is the scan tool LED 5 off? Was the ABS inactive when the problem occurred?
YES: See Test 10U2
NO: See Test 10U15

TEST 10U2: CHECK THE CONDITION WHEN THE TROUBLE OCCURRED
Determine what driving conditions existed when the trouble occurred. Attempt to duplicate the conditions.
CHECK: Is the trouble immediately apparent?
YES: See Test 10U3
NO: See Test 10U15

TEST 10U3: CHECK THE CONDITION WHEN THE TROUBLE OCCURRED
CHECK: Did the trouble occur immediately after engine starting or during standing starts?
YES: See Test 10U11
NO: See Test 10U4





TEST 10U4: CHECK SOLENOID VALVE RESISTANCE
1) Turn ignition switch to OFF.
2) Disconnect two connectors (ABS1, F9) from hydraulic unit.
3) Measure resistance between hydraulic unit connector terminals.
Connector & terminal:
Trouble code 32 / (F9) No. 8 & (ABS1) No. 2
Trouble code 34 / (F9) No. 5 & (ABS1) No. 2
Trouble code 36 / (F9) No. 6 & (ABS1) No. 2
Trouble code 38 / (F9) No. 7 & (ABS1) No. 2
CHECK: Is the resistance between 3.8 and 4.8 ohms?
YES: See Test 10U5
NO: Replace hydraulic unit.





TEST 10U5: CHECK GROUND SHORT OF SOLENOID VALVE
Measure resistance between hydraulic unit connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F9) No. 8 & Chassis ground
Trouble code 34 / (F9) No. 5 & Chassis ground
Trouble code 36 / (F9) No. 6 & Chassis ground
Trouble code 38 / (F9) No. 7 & Chassis ground
CHECK: Is the resistance more than 1 M ohm?
YES: See Test 10U6
NO: Replace hydraulic unit.





TEST 10U6: CHECK GROUND SHORT OF HARNESS
1) Disconnect connector from ABS Control Module (ABSCM).
2) Measure resistance between ABSCM connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F49) No. 3 & Chassis ground
Trouble code 34 / (F49) No. 51 & Chassis ground
Trouble code 36 / (F49) No. 50 & Chassis ground
Trouble code 38 / (F49) No. 4 & Chassis ground
CHECK: Is the resistance more than 1 M ohm?
YES: See Test 10U7
NO: Repair harness between ABSCM and hydraulic unit.





TEST 10U7: CHECK HARNESS BETWEEN ABSCM AND HYDRAULIC UNIT
1) Connect connector to hydraulic unit.
2) Measure resistance between ABS Control Module (ABSCM) connector terminals.
Connector & terminal:
Trouble code 32 / (F49) No. 3 & No. 1
Trouble code 34 / (F49) No. 51 & No. 1
Trouble code 36 / (F49) No. 50 & No. 1
Trouble code 38 / (F49) No. 4 & No. 1
CHECK: Is the resistance between 4.3 and 5.3 ohms?
YES: See Test 10U8
NO: Repair harness/connector between ABSCM and hydraulic unit.

TEST 10U8: CHECK FOR POOR CONTACT IN CONNECTORS
CHECK: Is there poor contact in connectors between ABS Control Module (ABSCM) and hydraulic unit?
YES: Repair connector.
NO: See Test 10U9

TEST 10U9: CHECK ABSCM
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the trouble code.
CHECK: Is the same trouble code as in the current diagnosis still being output?
YES: Replace ABS Control Module (ABSCM).
NO: See Test 10U10

TEST 10U10: CHECK FOR ANY OTHER TROUBLE CODES
CHECK: Are other trouble codes being output?
YES: Proceed with the diagnosis corresponding to the trouble code.
NO: A temporary poor contact is indicated.





TEST 10U11: CHECK BATTERY SHORT OF SOLENOID VALVE
1) Turn ignition switch to OFF.
2) Disconnect two connectors (ABS1, F9) from hydraulic unit.
3) Disconnect connector from ABS Control Module (ABSCM).
4) Turn ignition switch to ON.
5) Measure voltage between hydraulic unit connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F9) No. 8 (+) & Chassis ground (-)
Trouble code 34 / (F9) No. 5 (+) & Chassis ground (-)
Trouble code 36 / (F9) No. 6 (+) & Chassis ground (-)
Trouble code 38 / (F9) No. 7 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U12
NO: Replace hydraulic unit.





TEST 10U12: CHECK BATTERY SHORT OF SOLENOID VALVE
1) Turn ignition switch to OFF.
2) Measure voltage between hydraulic unit connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F9) No. 8 (+) & Chassis ground (-)
Trouble code 34 / (F9) No. 5 (+) & Chassis ground (-)
Trouble code 36 / (F9) No. 6 (+) & Chassis ground (-)
Trouble code 38 / (F9) No. 7 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U13
NO: Replace hydraulic unit.





TEST 10U13: CHECK BATTERY SHORT OF HARNESS
1) Turn ignition switch to ON.
2) Measure voltage between ABS Control Module (ABSCM) connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F49) No. 3 (+) & Chassis ground (-)
Trouble code 34 / (F49) No. 51 (+) & Chassis ground (-)
Trouble code 36 / (F49) No. 50 (+) & Chassis ground (-)
Trouble code 38 / (F49) No. 4 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U14
NO: Repair harness between ABSCM and hydraulic unit.





TEST 10U14: CHECK BATTERY SHORT OF HARNESS
1) Turn ignition switch to OFF.
2) Measure voltage between ABS Control Module (ABSCM) connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F49) No. 3 (+) & Chassis ground (-)
Trouble code 34 / (F49) No. 51 (+) & Chassis ground (-)
Trouble code 36 / (F49) No. 50 (+) & Chassis ground (-)
Trouble code 38 / (F49) No. 4 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: Replace ABSCM.
NO: Repair harness between ABSCM and hydraulic unit.





TEST 10U15: CHECK RESISTANCE OF SOLENOID VALVE
1) Turn ignition switch to OFF.
2) Disconnect two connectors (ABS1, F9) from hydraulic unit.
3) Measure resistance between hydraulic unit connector terminals.
Connector & terminal:
Trouble code 32 / (F9) No. 8 & (ABS1) No. 2
Trouble code 34 / (F9) No. 5 & (ABS1) No. 2
Trouble code 36 / (F9) No. 6 & (ABS1) No. 2
Trouble code 38 / (F9) No. 7 & (ABS1) No. 2
CHECK: Is the resistance between 3.8 and 4.8 ohms?
YES: See Test 10U16
NO: Replace hydraulic unit.





TEST 10U16: CHECK GROUND SHORT OF SOLENOID VALVE
Measure resistance between hydraulic unit connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F9) No. 8 & Chassis ground
Trouble code 34 / (F9) No. 5 & Chassis ground
Trouble code 36 / (F9) No. 6 & Chassis ground
Trouble code 38 / (F9) No. 7 & Chassis ground
CHECK: Is the resistance more than 1 M ohm?
YES: See Test 10U17
NO: Replace hydraulic unit.





TEST 10U17: CHECK BATTERY SHORT OF SOLENOID VALVE
1) Disconnect connector from ABS Control Module (ABSCM).
2) Measure voltage between hydraulic unit connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F9) No. 8 (+) & Chassis ground (-)
Trouble code 34 / (F9) No. 5 (+) & Chassis ground (-)
Trouble code 36 / (F9) No. 6 (+) & Chassis ground (-)
Trouble code 38 / (F9) No. 7 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U18
NO: Replace hydraulic unit.





TEST 10U18: CHECK BATTERY SHORT OF SOLENOID VALVE
1) Turn ignition switch to OFF.
2) Measure voltage between hydraulic unit connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F9) No. 8 (+) & Chassis ground (-)
Trouble code 34 / (F9) No. 5 (+) & Chassis ground (-)
Trouble code 36 / (F9) No. 6 (+) & Chassis ground (-)
Trouble code 38 / (F9) No. 7 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U19
NO: Replace hydraulic unit.





TEST 10U19: CHECK BATTERY SHORT OF HARNESS
1) Turn ignition switch to ON.
2) Measure voltage between ABS Control Module (ABSCM) connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F49) No. 3 (+) & Chassis ground (-)
Trouble code 34 / (F49) No. 51 (+) & Chassis ground (-)
Trouble code 36 / (F49) No. 50 (+) & Chassis ground (-)
Trouble code 38 / (F49) No. 4 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U20
NO: Repair harness between ABSCM and hydraulic unit.





TEST 10U20: CHECK BATTERY SHORT OF HARNESS
1) Turn ignition switch to OFF.
2) Measure voltage between ABS Control Module (ABSCM) connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F49) No. 3 (+) & Chassis ground (-)
Trouble code 34 / (F49) No. 51 (+) & Chassis ground (-)
Trouble code 36 / (F49) No. 50 (+) & Chassis ground (-)
Trouble code 38 / (F49) No. 4 (+) & Chassis ground (-)
CHECK: Is voltage 0 Volt?
YES: See Test 10U21
NO: Repair harness between ABSCM and hydraulic unit.





TEST 10U21: CHECK GROUND SHORT OF HARNESS
Measure resistance between ABS Control Module (ABSCM) connector and chassis ground.
Connector & terminal:
Trouble code 32 / (F49) No. 3 & Chassis ground
Trouble code 34 / (F49) No. 51 & Chassis ground
Trouble code 36 / (F49) No. 50 & Chassis ground
Trouble code 38 / (F49) No. 4 & Chassis ground:
CHECK: Is the resistance more than 1 M ohm?
YES: See Test 10U22
NO: Repair harness between ABSCM and hydraulic unit.





TEST 10U22: CHECK HARNESS BETWEEN ABSCM AND HYDRAULIC UNIT
1) Connect connector to hydraulic unit.
2) Measure resistance between ABS Control Module (ABSCM) connector terminals.
Connector & terminal:
Trouble code 32 / (F49) No. 3 & No. 1
Trouble code 34 / (F49) No. 51 & No. 1
Trouble code 36 / (F49) No. 50 & No. 1
Trouble code 38 / (F49) No. 4 & No. 1
CHECK: Is the resistance between 4.3 and 5.3 ohms?
YES: See Test 10U23
NO: Repair harness/connector between ABSCM and hydraulic unit.

TEST 10U23: CHECK FOR POOR CONTACT IN CONNECTORS
CHECK: Is there poor contact in connectors between ABS Control Module (ABSCM) and hydraulic unit?
YES: Repair connector.
NO: See Test 10U24

TEST 10U24: CHECK ABSCM
1) Connect all connectors.
2) Erase the memory.
3) Perform inspection mode.
4) Read out the trouble code.
CHECK: Is the same trouble code as in the current diagnosis still being output?
YES: Replace ABS Control Module (ABSCM).
NO: See Test 10U25

TEST 10U25: CHECK FOR ANY OTHER TROUBLE CODES
CHECK: Are other trouble codes being output?
YES: Proceed with the diagnosis corresponding to the trouble code.
NO: A temporary poor contact is indicated.