Subject: | New Calibration for P013B P013D or P1400 |
Models: | 2008 Hummer H3 |
Equipped with the 5.3 V-8 engine RPO code LH8 |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
A dealer may encounter a 2008 H3 Hummer with intermittent DTCs P013B P013D or P1400. There has been new calibration released to address DTCs P013B P013D or P1400.
Complete the current SI diagnostic for any trouble codes or symptoms found. If diagnostics were inconclusive, update the ECM with the latest TIS2000 calibration, and evaluate the customer concern.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.