4E
DTC C1015 (No.15): G Sensor Circuit
[A]: For M/T model 1. Battery 4. Circuit fuse box
[B]: For A/T model 2. Main fuse box 5. G sensor
[C]: ABS hydraulic unit / control module connector E142 (viewed form terminal side) 3. Ignition switch 6. ABS hydraulic unit / control module assembly
Circuit Description
While a vehicle is at stop and running, if the potential difference between the vehicle accelerator inferred from the signals of wheel speed sensors and the vehicle acceleration detected by the G sensor is not within the specified value, if no signal is imputed from the G sensor, this DTC will be set.
Therefore, this DTC may be set when a vehicle is lifted up and its wheel(s) is turned. In such case, clear the DTC and check again.
Troubleshooting
Step Action YES NO
1
Was ABS Check performed?
Go to Step 2.
Go to ABS Check .
2
Are DTC C1021, C1022, C1025, C1026, C1031, C1032, C 1035 or C1036 indicated?
Go to applicable diag. flow.
Go to step 3.
3
Is G sensor installed floor securely?
Go to Step 4.
Tighten sensor bolt securely.
If not, use new bolt.
4
1) Turn ignition switch to OFF position.
2) Remove G sensor from floor.
3) Check for proper connection to G sensor.
4) If OK, then check G sensor referring to G Sensor Inspection .
Is it in good condition?
Go to step 5.
Replace G sensor.
5
1) Disconnect connectors from ABS hydraulic unit / control module assembly and G sensor.
2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E142-6” and “E142-9”.
3) If OK, then turn ignition switch to ON and measure voltage between “GRN/ORN” wire terminal of G sensor connector and vehicle body ground.
Is it 10 – 14 V?
Go to step 6.
“GRN/ORN” wire circuit open.
6
Measure voltage between “RED/WHT” wire terminal of G sensor connector and vehicle body ground.
Is it 0 V?
Go to step 7.
“RED/WHT” wire circuit shorted to power circuit.
7
1) Turn ignition switch to OFF position.
2) Check that “RED/WHT” wire circuit is free from open or short to ground and “ORN/BLK” wire circuit.
Is it in good condition?
“ORN/WHT” wire circuit open.
If circuit is OK, substitute a known-good ABS hydraulic unit / control module assembly.
“RED/WHT” wire circuit open or shorted to ground or “ORN/BLK” wire circuit.