DTC Troubleshooting

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	Was "Electronic Stability Program Check" performed?	Go to Step 2.	Go to ELECTRONIC STABILITY PROGRAM CHECK .
2	DTC check for ESP® Connect scan tool to DLC with ignition switch turned OFF. Turn ignition switch ON and check DTC for ESP®. Are DTC C1057 and/or C1073 detected?	Go to applicable DTC diag. flow.	Go to Step 3.
3	Check yaw rate/G sensor assembly power supply circuit Turn ignition switch to OFF position. Disconnect yaw rate/G sensor assembly connector. Check for proper connection to yaw rate/G sensor assembly connector terminals at "L39-1" and "L39-4". If OK, then measure voltage between connector terminal "L39-1" and vehicle body ground. Is it 0 V?	Go to Step 4.	Go to Step 5.
4	Check yaw rate/G sensor assembly power supply circuit Measure voltage between connector terminal "L39-1" and "L39-4" with ignition switch turned ON. Is it 10 - 14 V?	Substitute a known-good yaw rate/G sensor assembly and recheck.	Go to Step 5.
5	Check yaw rate/G sensor assembly power supply circuit Turn ignition switch to OFF position. Disconnect ESP® control module connector. Check for proper connection to ESP® control module connector terminals at "E53-29" and "E53-22". If OK, then measure voltage between connector terminal "E53-22" and vehicle body ground with ignition switch turned ON. Is it 0 V?	Go to Step 6.	"PNK/WHT" wire circuit is shorted to power circuit.
6	Check yaw rate/G sensor assembly power supply circuit Measure resistance between the following points. Between terminal "E53-22" of module connector and terminal "L39-1" of sensor terminal. Between terminal "E53-29" of module connector and terminal "L39-4" of sensor terminal. Are resistance less than 2 Ω?	Substitute a known-good ESP® hydraulic unit/control module assembly and recheck.	"PNK/WHT" and/or "PNK/GRN" wire circuit open or high resistance.